brt 123 According to Wikipedia the only person to witness both explosions was Lawrence H. Johnston, a physicist. However, it does seem that the aircraft crews were swapped around so it is a bit confusing. The Great Artiste appears to have had 2 completely different crews for both flights.
Sweeny's crew flew the Great Ariste on the first bomb run. Sweeny flew the Bosckar on the second bombing mission (the plane that dropped the bomb) This wiki shows the Nagasaki crew (same as the Hiroshima crew on the great artiste) en.wikipedia.org/wiki/Bockscar
The bomb never hit the ground and never was intended to do so, it self detonated at eighteen Hundred (1800') feet above the ground to create a greater blast impact area, so the "intended" target (center of the T bridge) made no difference that the bomb detonated 450' just shy of the intended chosen point. Like Horseshoes and hand grenades, close is good enough for a score. Side note that the greatest IRONY in history was missed in the bomb drop, as had they used one of the other 2 planes on that mission, the irony could never be topped, that being the plane named "Necessary Evil" piloted by William George Marquardt.
Yep, my late father used to say "Close only counts in horseshoes, hand grenades, and minor nuclear weaponry." (And compared to the nukes available during the Cold War, Hiroshima was minor.)
Don is absolutely correct. The bomb never actually hits the ground and was setup to detonate at least 1500' above the ground. I'm not sure this was factored into the calculations for this video. Very interesting nonetheless.
M Detlef , he is absolutely right, compare to bombs made AND tested in the Cold War, little boy and fat man were trivial in comparison. And they were TESTED as well, at nuclear test sites in the deserts of the south west, so yes I would say we can compare the bombs dropped on Hiroshima/Nagasaki to future nuclear technology. WWII is by far my favorite period in history, but that doesn’t mean I think they had the greatest technology back then.
My dad was a Navy Seabee who helped build the airfields on Tinian. He rarely spoke about this time except when I became aware of these world events. when I was very young in the early 70’s. I became a huge WWII amateur historian and also a Naval aviator. I have had the opportunity to visit Nagasaki on one of my port visits back in 1983 and went to the Peace park. The Japanese people were and are so polite and a joy to talk to. I still fly to Japan and greater Asia as a pilot to this day. I have even flown the return flight from Japan near Iwo and the Marianas on flights to Australia. The only thing on my bucket list that I want to see after a lifetime of worldwide flying is to walk where my father walked as a 17 year old Seabee on Tinian. He lied about his age and went into the service at 16 years of age. This is a huge source of pride in our family and it rubbed off on his sons as we have a Marine, an army guy and me the Swabbie. Thank you for this excellent video. Fascinating seeing this mission from this point of view.
I was a Seabee. After my enlistment I worked my way up the ranks in commercial flying and retired as a 747 Capt. in 2014. I flew in the Pacific quite a bit and enjoyed my layovers in Japan and studying history. My dad was a Marine Corps Aviator in the Pacific in WW II. He flew TBF's.
So basically you feel ok around japanese because they are friendly and polite and you don feel ashamed ? Not as a person but as an american ? Oookkkkk.....
So... In your ww2 studies, have you figured out that the Allies were the bad guys or do you just read books written by the winners and watch movies? Lol
@cinnamongirl3121 - there is no evidence the bombs ended the war in fact the war continued till the end of August 1945 - Hitler too began killing civilians in order to accelerate his victories and end the war - you condone him too? - read what our very own experts General Curtis LeMay who actually pioneered strategic bombing of Germany and Japan said "The atomic bomb had nothing to do with the end of the war at all." and the ww2 Prime Minister Suzuki of Japan on Aug 13 "If we miss today, the Soviet Union will take not only Manchuria, Korea, Karafuto, but also Hokkaido.This would destroy the foundation of Japan. We must end the war when we can deal with the United States.” that should give you a clue it was the help from the Russian invasion Aug 8- Sep2 as the real reason the Japanese surrendered earlier than expected - also you cannot or should not try to differentiate a war crime ( killing civilians) as something that was necessary or played a "key role" - I don't know about you but the facts show we did not win the pacific war by killing innocent unarmed civilians, women and children - I don't hate USA but people like you who condone killing civilians is un American, un patriotic and not what old glory stands for - need to " learn history" would be you
@Incerthose A. IntoBee - Hirohito's so called surrender speech of Aug 15 is not a surrender speech - there is no mention of surrender, no mention of Potsdam, no orders to surrender, no times dates for a surrender it is simply Hirohito (but not the big 6 who remained deadlocked) "accepting the provisions of their (Allies) joint declaration" - they included the Soviet Union which was not a signatory on the Potsdam Declaration July 26 so the King Pin here is the Soviet Union as backed up by this statement from the Prime Minister Suzuki of Japan on Aug 13 "If we miss today, the Soviet Union will take not only Manchuria, Korea, Karafuto, but also Hokkaido.This would destroy the foundation of Japan. We must end the war when we can deal with the United States.” and by Hirohito on Aug 17 "Now that the Soviet Union has entered the war against us, to continue the war under the present internal and external conditions would be only to increase needlessly the ravages of war finally to the point of endangering the very foundation of the Empire's existence With that in mind and although the fighting spirit of the Imperial Army and Navy is as high as ever, with a view to maintaining and protecting our noble national policy we are about to make peace with the United States, Britain, the Soviet Union and Chungking." - no mention of the bombs - it was Russia and Stalin that made Japan surrender - you can't beat the Emperor's opinion with your crap
@Incerthose A. IntoBee - fact check the August 15 Hirohito broadcast was hopelessly unreliable and confused the hell out of everyone especially the Allies since IJA did not stop fighting on August 15 but resisted and continued to hold enemy territory - "Japan agrees to the terms set firth by (the allied nations)" is a lie not a surrender especially if the IJA continue the war in some of the biggest land battles of ww2 to the end of August as the Commander in Chief of Soviet Forces Vasilevskii explained "the armed forces of Japan can be considered capitulated only from the moment when the order is given by the Japanese Emperor to cease military actions and lay down arms and when this order is in reality fulfilled" - the order to surrender finally came after the USSR had handed Japan its biggest land defeat in all of Japan's history - they achieved in 3 weeks what we couldn't do in 3 years by taking Manchuria, N Korea, Sakhalin and Kuriles from the IJA in some of the fiercest battles of the war killing 90,000 IJA and taking 600,000 IJA POWs even though they all swore a fight to the death - that's not a surrender on August 15 so the "REALLY STUPID?, brain dead fuck. fucking imbecile!" would be you
I live in Japan right now. Most Japanese schools do not teach much about wartime. A city named Kokura that now has a bullet train station stop was targeted as an "A" option and a "B" option target. A cloud obscured the target and only that spot on an otherwise perfect day. The flew around until moving on to Nagasaki. If hiroshima had been unable to have the target aquired the b plan was kokura. Most folks in kokura nowadays have no idea they were the only city in history to be routes 2x on nuclear wartime bombing runs. The city was mostly spared as the military wanted it fresh for pre and post bombing pic/damage reports.
I was in graduate school with a young woman from Japan. She must have been born in the early 1970's and lived in Yokohama. When she was a little girl, her mom told her not to play in the rain or her hair would fall out.
I've been to japan a few times and visited the museum in Hiroshima, the way they've worded the timeline of the war is kinda sad. My friend lives there with his japanese wife, and they are clueless on their history
@@benstern310 I've been to the Nagasaki Museum. Japanese tend to focus less upon the history and more upon the present and future. They remember those that were killed rather than the events themselves. And their traditional ceremonies are a powerful reminder in the Japanese way. What I found very scary at the Nagasaki museum, was the straight up way they presented the Nuclear capacity of countries. Russia: 7300 warheads. US: 7000. China: 300. Those are pretty scary figures.
@@benstern310 Yes. It overlooks the Peace Park, Its actually very beautiful. You can walk down from the museum down a little gradient to it and you can see the memorial at ground zero. According to the numbers, we have the capacity to end human life on the planet many times over
"that kind of weight being pulled towards the earth is gonna accelerate really quick" - heavy things do not fall faster, but mass, material and shape determine the effect wind resistance has on an object. My thought would be to stay under the speed of sound to avoid troubles.
It was odd hearing that common misconception and "I did the math and found the terminal velocity to be 943 MPH" in the same sentence. If you did the math you would know that's now how it works!
Sry but isn't both wrong? Clearly "that kind of weight being pulled towards the earth is gonna accelerate really quick" is very missleading because there is very little effect of different object weight on falling spped. But "Heavy thing do not fall fast" is wrong, isn't it?! At least if faling means moving towards earth surface. The thruth is: If objects have a millon times lass mass than objects in their neighbarhood, their mass doesn't really play a significant role. Check the physics: gravitational acceleration = object mass/gravitational Force a= m/F Where gravitational force is: F = G * (m1*m2)/r² So mass of falling object m2 does influence the falling speed. Although with m1 beeing much much bigger than m2, effect of m1 is tiny. In other word mass of erth dictates how fast bomb falls down to earth. Mass of bomb indicates how fast erth falls up to bomb. Of course in the total balanced speed, obviously the eatrth is not falling up to the bomb.
A heavy, aerodynamic-shaped object would fall at an acceleration very close to a freefall in a vacuum, so air resistance is minimal. Using his time of 43 seconds, a freefalling object would fall 29,700 feet at a terminal velocity of about 950 mph, so the figures quoted in the video are fairly close, 29,200 feet (release altitude to detonation altitude) and 943 mph. I always thought that the bomb had a small drogue parachute to delay the fall to give the aircraft more time to get away, but if the figures he give are correct, then it would seem there was no drogue.
@@karhukivi AN602 Zar bomb had such a parachute and I think i read this was a serious challenge - but maybe just due to its enormous weight Doesnt look like Little Boy had a parachute: en.wikipedia.org/wiki/Little_Boy#/media/File:Little_Boy_Internal_Components.png
Excellent video. It's amazing to me how they did all of this without GPS and solid weather reports. One minor thing: if someone hasn't already mentioned it, the location of the Hypercenter or explosion is a little off. It didn't explode directly over the dome as you marked. It exploded a little to the east over what is now a small side street in the city. If you ever get a chance to visit the peace park and atomic bomb museum there, it is a surreal experience.
Absolutely correct. The street to the right of the Dome area was the hypocentre. Then it was a hospital, today a dental centre. If you walk down the street you will see a small monument marking the exact hypocentre. The Dome "survived" due to the detonation being almost exactly above (about 400' off to one side) but the majority of the blast came from almost directly above. A visit to the area will show you where the monument is -1 Chome-5-25 Otemachi, Naka Ward, Hiroshima, 730-0051, Japan lh5.googleusercontent.com/p/AF1QipOJKSKlZxguvVamr-b7rzbk5bXl3dFOclfCRChi=w408-h306-k-no
As a history buff and a google/earth fan I've often checked out actual places for historical events. This is awesome. Binged on every video Forrest has posted in the last day. Thank you for your research and informative/entertaining vids. Loved them all.
I have been to the bomb loading pits as well. I was deployed to Tinian in 1994 as part of a military exercise. We were playing the bad guys, the opfor. We made out headquarters at a large bombed out two-story building that used to be the command center for the Japanese forces on the island.
@@Bellthorian - there is more than sufficient legal matter in just the Hague documents alone to incriminate USA ( or any side) in aerial bombing war crimes - the fact that it was swept under the carpet at Nuremberg and at Tokyo for obvious reasons doesn't mitigate USA - Truman specifically targeted defenseless civilians, women and children and said we are going to kill them to save the lives of soldiers and will remain a war criminal for all eternity
@@majorrgeek I could care less what the Hague documents or anyone else say. War should be just that TOTAL war. The bombing of civilians is perfectly justified because in order to win a war you have to break the enemies will to survive. Look at how "Limited" war has failed in Vietnam, Afghanistan, Iraq, all limited war does is allow the war to go on forever. All it does is benefit the military industrial complex, the money in war is making it last as long as you can. There is no money in peace. Truman is a hero, dropping the bombs on Hiroshima and Nagasaki saved MILLIONS of lives in the long run, both civilian and military.
@@Bellthorian - USA did not declare total war and the Allies did not declare a departure from the declared humanitarian and legal articles of war (Hague) at any time during WW2 either - in fact the Allies brought Japanese and Nazi war criminals to justice under those same articles which applied properly and evenly also incriminate Truman a war criminal during WW2 and in Korean war - really you are upholding to terrorism by the Truman legacy - that if a criminal gets away with a crime he wins something Also speaking of "hero" Truman actually bypassed Kyushu defenders and deliberately targeted civilians, women and children with nuclear weapons which by definition is terrorism and a war crime and a brazenly cowardly attack which also undermined the heroism of our fighting Pacific marines - deliberately killing civilians is un American, unpatriotic and not what old glory stands for - defending this action is no better as well there is no evidence the bombs ended the war or made Japanese surrender nor "save millions" - and even if it did still does not change the fact Hiroshima is a war crime - you got to get your facts right
@@majorrgeek It is only a War Crime to revisionist people like you. Look at the invasion of Okinawa and the staggering casualties on both sides. Extrapolate that to invading the mainland and you are looking at a million dead American soldiers. I think you don't understand my point of view. It is in my opinion that war should be so horrific that people will think twice about starting them and only then can we as a species try to learn other ways to resolve our disputes instead of violence. If there is no pain, there is no desire to change the behavior.
As an interesting side note the "Little boy" bomb was loaded with 140 lbs of Uranium 235, yet only about the weight of a US Dollar Bill fisioned and created all that damage and the huge mushroom cloud. Can you imagine the distruction if most or all of the Uranium had fisioned?
@@spingebill8551 I love how the American mindset for the cold war was precision amd the Russian mindset was "just make it bigger" lol. Great pieces of tech but it's a great thing they were never utilized for their intended purpose.
ktphotog Nukes will never go off with 100% efficiency, the intended blast wasn’t supposed to be much bigger than what the result was, the scientists had a general idea of how much uranium was needed for what size explosion. ( America tested nukes multiple times before nuking Japan )
@@sicilianknight6310 America did NOT test nukes "multiple times". There was only one test, and it was of a Plutonium device. It took place less than 3 weeks before Hiroshima. The Uranium bomb design was never tested - many of the scientists had their fingers crossed on August 6 (they were confident, but they were also worried).
Good video. Very interesting. You forgot air resistance when calculating the bomb's velocity when detonating. It was subsonic, not supersonic. I assume you used conservation of energy (potential=kinetics, and you had the altitude known) to calculate the velocity, but that is ignoring air resistance. Also, you mention it wheighing 10.000 lbs and thus accelerating quickly. All objects regardless of their mass falling accelerate at the same rate due to gravity (g = 9.81m/s sq), although form factor and fluid dynamics greatly affect them. Sorry, english is not my 1st language.
Agree. Any object in free fall reaches a terminal velocity where the force of air resistance equals the force of gravity and acceleration becomes zero. The air resistance depends on the shape and size of the object and air density, and increases with the square of the velocity. The bomb had fins, which would increase drag. If we knew the size and drag coefficient, along with its weight and an estimate of the air density, we could calculate the terminal velocity. However, just looking at an object with a wide cross-sectional area and fins, seems unlikely that terminal velocity would reach supersonic. And my guess it that it was designed to not reach supersonic so as to not screw up the detonators.
blalolblalol not accelerating quickly, but not being slowed by air resistance due to it being two feet in diameter and weighing 10,000 lbs. it went from 31,060 feet to 2,000 ft in 43 seconds. Average of 540 mph if it left the plane at 540 mph and remained at that speed. But it started at zero mph and had to go well past 540 in order to average it. Acceleration formula was used with air resistance factored in.
@@forresthaggertychannel4301 Jeez... Its forward speed was about 250 to 300 mph (approximately) at the moment it was dropped which was the forward speed of the aircraft. It began decelerating immediately along the horizontal due to air resistance once it cleared the aircraft. It's acceleration vertically (downward) at 1g. 32.16 fps. 22 mph every second till it achieved the maximum speed capable of a falling object within the Earth's atmosphere. 🙄
VALHALLAXE math and physics don’t lie. Work it for yourself. 43 seconds from release to detonation from 31,060 ft. to 2,000 ft. starting at zero for vertical speed.
Thanks for the video. Your analysis n calculations were very interesting, especially your graphic map of the bombing run, release point, area of initial impact, etc. Looking forward to your next video.
I lived in Hiroshima for a year in 2009-2010. Became absolutely fascinated with the atomic bombings and walked past the dome almost everyday. It’s so surreal to actual see it and trying to imagine the bomb detonating above.
I went to Hiroshima couple of years ago and visited the museum, it was pretty heart breaking and the Japanese did a good job displaying the history, there are a lot of tourist from all over the world there.
If they'd turned left, they would've dropped the bomb around 4°15'34" in the Ceram Sea south of Papua. I'm sure the local fishermen wouldn't have been too happy about that.
krazybubbler the map is still accurate because the air drag was calculated by a physics professor, like he said. I got 457 mph for the velocity at impact though, and that’s accounting for drag and assuming a cD of 1, which idk if that’s accurate
@@SketchRC Rather hard to get accurate numbers unless you can find the exact dimensions of the bomb, the exact release speed of the bomb, exact altitude it was released and the atmospheric measurements that day. So rough is the best we can get. Also the bomb didn't impact the ground.
College Student well the exact dimensions are known, and so is the time of flight, altitude, speed of release (which was 0 in the vertical direction) and atmospheric measurements that day. That said, I just did my best to come up with something approximate to show that it isn’t 900 mph. The density of the atmosphere (which is thinner the higher you get) makes me think it would’ve been closer to 500 mph, but like I said idk what the drag of a bomb actually is so it could be much higher or much lower.
@@majorrgeek Obviously (or not), I was praising Google Earth's capabilities and this RUclipsr's presentation. Or did you really think I was stoked about the bombing? Silly rabbit.
@@oldv1288 So you're saying to me that this wasn't recommended to me because it had Gay in the title?, what about all the other completely random videos that have been recommended to me then? they all had gay in them as well!
@@oldv1288 Oh well, I'm still in school learning, I just haven't learned about this exact thing. If I had been told this before I would've certainly remembered, and well I have read a lot of books, mostly fantasy, but definitely also a bunch of history books!
My father was in the US Army Medical Corps. He has a graduate degree in microbiology from Vanderbilt. There was a small medical company that was there to study the effects of the bombs if a surrender did occur. Which it did, his medical team went to Hiroshima a few weeks after the surrender. His stories were tales of horror something no other person should ever have to endure. My Father passed in 1994 he is missed.
Geo HVL - sad about your father - however, it is wrong for us to assume that a war crime can be differentiated as an event which was somehow necessary because it was not and it was certainly not the main reason for the Japanese surrender
@@majorrgeek Lol it was defiantly necessary common sense would tell anyone that. The population of Japan at the end of WW2 was around 71 Million. 50,000 civilians were killed with the atomic bomb. 20,000 Military members. If an invasion would to have occurred. Easily half a million soldiers would have been killed as well as hundreds of thousands of civilians. Come on man, go look this stuff up.
@@tycardwell2991 - I have researched this topic, more than you it seems, you cannot go killing civilians based on an assumption they would attack you if invaded - your comment simply lacks the self defence defense - also the a bombs never ended the war either
@@majorrgeek You are being completely ridiculous. Of course you can. Quit playing this moral high ground bull shit. Innocent civilians die in war. It fucking happens. If the Japanese didn't want their citizens getting killed they wouldn't have declared war on China and killed 3.9 million innocent Chinese civilians. INNOCENT CIVILIANS. JAPAN WAS THE AGRESSOR. They declared war on China. They declared war on the U.S. they pay the consequences for it. So shut the fuck up and quit defending people who threw Filipino babies up in the air and caught them on their bayonets jackass.
@@majorrgeek Yeah, we should launch a posthumous trial against Winnie Churchill, the greatest war criminal of them all. Or, perhaps you should just knock it off....
My father was a 21 year old B25 navigator on Tinian that morning. I would love to know where the officer's barracks might have been located. He said he heard the B29s taking off at all hours of the day and night, and was pretty sure he slept through the Enola Gay's take off. He would not have survived the invasion of Japan, which means neither I nor my brother would be here today, so I'm very grateful to President Truman for essentially allowing me to come to be. I've never heard about the bomb going supersonic. If I'm not mistaken, it had a parachute attached to it, and I can't imagine a low tech chute not being torn to shreds while moving at those speeds. Oh well, technicalities.
@@clarkeugene5727 I'm glad I got notification of your posting. I actually was in Hiroshima last September. Having actually been there, I can say that there isn't a single picture of the event that comes close to physically being there. There was an older gentleman protesting next to the tower, with a large poster of his burned, maimed mother. Apparently she was pregnant at the time of the blast. His poster, in English stated that she was a victim and he was a survivor of the blast. I went up to him, I was mildly angry because personally, I put no stock in people complaining that they are "victims", and informed him that I too was a survivor. I told him the story I posted above. He said nothing, but he bowed to me, and it was a very deep Japanese bow. Like everything else at the site, it was very, very humbling.
@@davidh9844 You were fortunate to be able to visit the site last year. Humbling for both sides for sure. I would like to suggest an interesting book for you. It is called "The Last Train From Hiroshima" by Charles R. Pellegrino. I got the CD's so I could listen while driving. It tells the story of people that boarded a train in Hiroshima after the bomb and then headed for Nagasaki just in time to witness the second one in real- time. So, they actually survived both blasts! Highly recommend. Nice to meet you by the way.
Same. My grandparents owned a business in Luzon, exactly where the IJN landed at the beginning of the war. Japanese occupation was horrific. I cannot believe people can compare American occupation to Japanese. Yes, there were plenty of war crimes to go around. But I’d rather be occupied by the Constitution then a ruthless military dictatorship.
the bomb could not have exceeded the speed of sound from just falling. There is a term called terminal velocity where the wind resistance increases as the object moves faster. Most objects top out at around 120 mph in a dead fall. Also the bomb was designed to detonate at an altitude of about 1900 ft.
Armus Skinofevil - the whole city of Hiroshima became the target for the atom bomb in fact it would be impossible to defend in any court since US did calculations to maximize the blast radius on the civilian population by optimizing the aerial blast height - Truman specifically targeted innocent civilians, women and children and said we are going to kill them to save lives of soldiers and like Hitler's holocaust Truman failed to observe the articles of War
@Incerthose A. IntoBee - "and what did the us calculate this with? There was no data for such calculations having only detonated ONE bomb before. Goddamn, you are STUPID son. Do you always just make shit up to prove to those who didn't already know" ???? read this bozo "The T (Theoretical) Division at Los Alamos had predicted a yield of between 5 and 10 kilotons of TNT (21 and 42 TJ). Immediately after the blast, the two lead-lined Sherman tanks made their way to the crater. Radiochemical analysis of soil samples that they collected indicated that the total yield (or energy release) had been around 18.6 kilotons of TNT (78 TJ).[103] Fifty beryllium-copper diaphragm microphones were also used to record the pressure of the blast wave. These were supplemented by mechanical pressure gauges.[104] These indicated a blast energy of 9.9 kilotons of TNT (41 TJ) ± 0.1 kilotons of TNT (0.42 TJ), with only one of the mechanical pressure gauges working correctly that indicated 10 kilotons of TNT (42 TJ).[105] Fermi prepared his own experiment to measure the energy that was released as blast. He later recalled that: About 40 seconds after the explosion the air blast reached me. I tried to estimate its strength by dropping from about six feet small pieces of paper before, during, and after the passage of the blast wave. Since, at the time, there was no wind I could observe very distinctly and actually measure the displacement of the pieces of paper that were in the process of falling while the blast was passing. The shift was about 2 1/2 meters, which, at the time, I estimated to correspond to the blast that would be produced by ten thousand tons of T.N.T.[106] There were also several gamma ray and neutron detectors; few survived the blast, with all the gauges within 200 feet (61 m) of ground zero being destroyed,[107] but sufficient data were recovered to measure the gamma ray component of the ionizing radiation released.[108]The official estimate for the total yield of the Trinity gadget, which includes the energy of the blast component together with the contributions from the explosion's light output and both forms of ionizing radiation, is 21 kilotons of TNT (88 TJ),[112] of which about 15 kilotons of TNT (63 TJ) was contributed by fission of the plutonium core, and about 6 kilotons of TNT (25 TJ) was from fission of the natural uranium tamper.[113] A re-analysis of data published in 2016 put the yield at 22.1 kilotons of TNT (92 TJ), with a margin of error estimated at 2.7 kilotons of TNT (11 TJ).[114] As a result of the data gathered on the size of the blast, the detonation height for the bombing of Hiroshima was set at 1,885 feet (575 m) to take advantage of the mach stem blast reinforcing effect.[115]" en.wikipedia.org/wiki/Trinity_(nuclear_test)#Energy_measurements once again kinda proves the stupid one would be you
@Joe Mamma You're a complete idiot. Your comment proves you don't know jack shit about history because everyone knows the bomb detonated at about 2000 ft. That is in history books. Just like everyone knows the Japanese DID NOT surrender because the U.S. dropped 2 atom bombs on them, that too is documented in history. But I will not school you on that. You can remain a complete fucking idiot and continue to make an ass out of yourself with every comment you make. Damn you're STUPID!
There is no restriction on the terminal speed of a falling object because it's near the speed of sound. The 120 mph figure you cited is what is typical for a human skydiver, not all objects. The air drag will increase due to increased turbulence and the generation of a shock cone, but the object can still accelerate further if it has a small enough cross-sectional area in relation to its weight(sectional density). Remember also that the bomb was dropped from an altitude of about 31,000 ft, where the air density is considerably less and the bomb would free-fall almost as if it were in a vacuum. Judging from the weight of the bomb(~4,400 kg) and its streamlined shape, I would estimate that the air drag at the falling speeds encountered would not be significant compared to its weight(mg = 43,120 Newtons). We could test this assumption by comparing the actual time of free fall of the bomb(44.4 sec) to the time it would take to free-fall in a vacuum. In a vacuum, the bomb falls with constant acceleration g= 9.8 m?s^2 and the distance is related to the time by d = 1/2*g*t^2. Solving for t: t =sqrt(2*d/g). Plugging in the numbers for d = 4,400 m - 600m(detonation altitude) and g = 9.8 gives us a time of fall of 42.4 sec, just a little bit shorter than the actual time of 44.4 sec. This suggests to me that the air drag on the bomb was nearly negligible in comparison to its weight. We can now get a good estimate on its terminal velocity by assuming that it was subject only to the force of gravity(its weight). Under constant acceleration: v = g*t = 9.8*42.4 = 416 m/s or about 930 mph, well above the speed of sound at sea level. Credentials: MS in Physics and 10+years teaching calculus-based Mechanics and Electromagnetism classes in college.
Dude this video was AWESOME. Great work 👍 I genuinely learned a lot. You should do one about the blast radius and fallout area shown on google earth as well!
8:09 "that kind of weight is going to accelerate..." basic physics 32.18 ft/s2 - weight has nothing to do with it. Initial velocity and drag determine acceleration and terminal velocity.
Maybe he meant that weight makes a difference in the context of air resistance? It's true that a feather and hammer fall at the same velocity in a vacuum, but not in Earth's atmosphere.
I was born and grow up in this water city where I love most. I know about what atomic bomb, but I did not know about the detail of the way such as the fright course to carry the atomic bomb “little boy” Why do you know the detail information and how did you get it..? from books or something else..? Anyway, I would like to know and learn much more about atomic bomb and wars and then want to let people know that as a person who was born in this beautiful city called “ Peace city”
My father was a WW2 pilot after the war he went to work for a commercial airline, he used to tell me the biggest concern was the risk of fires in the airplanes he told me that sometimes arter coming back from a mission he couldn't get off the plane and 2 people had to pulled him out
It was probably already mentioned here, but Little Boy didn't explode over what is now called the Atomic Dome building. It explode right above the Shima hospital, 5 minutes away from both the A-Dome and the Aioi bridge.
I remember a quote that was from Hirohito I heard in World War II in Colour that stuck with me "for the first time the world has seen the use of cruel bombs" and that was from a man who ordered young men to Kamikaze. Such a tragic part of history. So grounding to see distances and stuff, adds perspective I feel
McTaminus - Hirohito never "ordered" the Kamikazi so stop the crap - unlike the self sacrificing pilots over the last 70 yrs your honoured gutless perventers of justice managed to kill 8 million civilians in 50 countries while enjoying the relative safety of high altitude and ultra high tech support and stealth - sick
@@2TheOneGamer4 - I certainly do know about unit 731 in fact the Unit 731 scientists were given reprieves and shelter in the USA while Hirohito was even allowed to go free and visit in USA - heck he even got to meet Mickey ,Mouse at Disneyland which is more than I ever got - why were no IJA taken prisoner by USA but were all allowed to return safely back to Japan under protection of the USA military?? - Russians took over 300,000 IJA prisoners back to Siberia good for the Russians while we took none - hope that helps
@@majorrgeek Yes, I certainly know about that as well. They were given shelter in exchange for the test results done at Unit 731. It's fucked up. But I'm not American. I don't believe that the Americans were or are innocent by any means. My point was simply that the Imperial Japanese Army were disgusting and I hope you can acknowledge that. Actually, I don't really care if you do or not.
For maximum effect, the bomb was detonated at about 1900 feet ASL, as opposed to a ground or near ground level detonation. For an incredible description of the blast effects, I refer you The Atomic Bazaar: Dispatches from the underground World of Nuclear Trafficking by William Langewisesche. In addition, the author discusses in great detail why transporting nuclear materials is so difficult, especially "terrorists." Great video, thanks.
There was no real reason to invade. The United States could've blockaded them and kept on bombing them forever. The Atomic Bomb did save millions of Japanese lives though. It they hadn't surrendered, there would've been mass-starvation because winter was coming on and there hadn't have been much in the way of farming that year. When they surrendered, the United States brought in dozens, or maybe hundreds of ships of supplies to prevent starvation.
@@EtzEchad no, their military was still substantial and would have destroyed any attempts at a US blockade, meanwhile they still had the ability to beat American forces in Alaska if they wanted to, invasion was the only alternative to cut the head of the dying but still lethal snake
Kevin Collver They had no navy and they had no air force. All they had was some coastal freighters. Their army was still significant, but they couldn’t use it unless America invaded. Meanwhile, their civilian population was literally starving.
Robert Hale - if you take Hiroshima bomb blast the military factories most of them on the outskirts of Hiroshima were not the target and nothing of any military significance was targeted since the bomb detonated over the Shimsu hospital right in the middle of 3/5 of total Hiroshima civilian population which equates to 200,000 civilians packed into the 4 square miles affected by the blast radius of about 1 mile guess this is why the bombing committee chose to bomb a city with high density population to maximise the number of deaths which is quite different to the battlefield scenario where you find soldiers scatted about over a broad area in a constant dynamic state of motion and this would limit the number of casualties especially with a crude low yield 20 kt weapon - I believe this is the reason why Truman chose to bypass the defenders dugin at Kyushu and bomb civilians because they were an easy target just like sitting ducks and would produce more deaths than hitting Kyushu - the real irony here is while Truman was killing Japan's civilians the Storming Russians were getting on with the real war hand to hand combat with IJA - that gave the Japanese an even bigger scare than the a bombs - even Truman was scared the Russians might land on Japan months before the USA - just think for a minute of the kind of headlines that would have sent across the world if they had - the real key to Japan's "early" surrender was the Russian decision to invade Japan - I am of the firm opinion that had the Russians decided to remain neutral Japan would never had surrendered when it did
You are correct. There is a darker reason though why Hiroshima and Nagasaki were bombed with the atom bomb. Look up the March 1945 Tokyo fire bombings (my wife's relatives and parents lived through that), look up the fire bombings in Dresden and other places in Germany and Japan. These two countries and their people were "dehumanized" to justify the murder of civillians on a massive scale. Look up the meaning of the phrase "burnt offering" from biblical times. Put two and two together. Then you will realize that the true evil sat with the "winners" of WWII.
Interestingly enough, the hypocenter is only marked by a small plaque at the side of a small street and is almost unnoticeable, whilst the atomic dome building and peace park attracts a lot of visitors.
Brilliant! At last I now understand why the Enola Gay was 11 miles away from the 41 second drop, ( I figured no aircraft could get that far away in that time.) Your research explains all; very well done. Tip: the book 'Ruin From the Air' by Gordon Thomas and Max Morgan Witts, 1977, is a detailed account of the mission.
This is a really good idea for a channel! I don't know how many late nights I've spent on wikipedia and google earth. I see I'm not alone. liked! Subscribed! best of luck with it!
I Was privileged to meet and come to know Camera operator Carl Contardo from these missions and after all the years that had passed it was still a vivid memory and often brought him to a distant introspection on what he took part in. As a former combat pilot in Viet Nam I can understand the thoughts but not the scope of those missions, RIP Carl, you earned it!
Thank you for this video. It’s very interesting. I flew this same round-trip route in my Flight Simulator 2004 and Flight Simulator X in real time with an added software B-29. It took many hours, but at least I had an idea of what kind of flight those B-29 crews experienced, without the flak and fighters of course! 🇺🇸👍
David Gray - your comment on terror bombing is total nonsense both the leaders of Japan surrendered due to the Russian August Storm invasion of Japan had nothing to do with terror bombing - to date no country has ever surrendered due to terror bombing - get an education
not only at least a million military men but the whole of the Japanese population since the whole population was preparing for the invasion and with how Okinawa, Saipan, Guam invasions the Allies would know they would have to fight the civilians as well as the Japanese military on the island of Japan
Thanks for putting this video out on YT. History books in schools don’t do much of a service when it comes to the details of the little boy and fat man drops. Just subbed to your channel
My time in school, in the 60's and 70's, they never spoke in detail about any wars post-Civil War. They also failed to mention the "White Supremacist" doctrine over specifically the black race, that the Confederacy was fighting to establish. Just slavery, in general, but not the Supremacy part... But then again, this was Texas.
Interesting video, but there's a tiny error. The target was indeed Aioi Bridge, but the suposed explosion point was not directly above the so-called Atomic Dome (then the Hiroshima Prefectural Industrial Promotion Hall), but more to the south-east, above the Shima Hospital. I've been in Hiroshima. And in Shima Clinic (as is called now). So the actual distance from the intended target was about 900 feet. But it's pretty damn close, anyway. en.wikipedia.org/wiki/Shima_Hospital
@@matthewj1997 Well I do care lol Otherwise the atomic dome would have been crushed by the blast, according to a book named "last train from Hiroshima", aside from the the atomic dome, only a concrete-built hospital and the base of Hiroshima castle still stands within the 5 or 7 km blast area
So interesting and researched. Apologies for the nit-picking: The winds affect everything in navigation, so the aircraft headings compensate for wind drift. If winds were taken into account, the tracks would be spot on. If not, then the deviation would be proportional to the wind speeds and direction, which at 31,000ft can be 100+mph. And, I was under the impression wind resistance creates a terminal velocity when gravity alone is involved. But if the bomb really did go 900+mph, that's amazing. Thanks for your videos.
Tomislav B o, kokura was the primary target for the second atomic mission, and Nagasaki was the secondary target. Kokura was obscured by smoke or clouds forcing Bocks Car to divert to its secondary target which was Nagasaki. They could have dropped using radar but the crews had been ordered to drop visually or face a court martial.
The primary target was exactly Hiroshima, not Kokura neither Nagasaki, so that since 4 months before the bomb dropping, was decided that it shouldn't have suffered any bombing. Indeed it was a never bombarded city in Japan before august 6th. They decided so for two reasons: 1) to find it integrates before the bombing in order to measure exactly the degree of the destruction caused from the bomb; 2) Give the impression that Hiroshima wasn't a target of interest for the US armed forces
After my Maternal Grandfather was KIA in W2, my Grandmother twenty some years later, remarried a Retired Navy Officer who was a Bombardier in the Pacific War. We didn't know this until he was on his death bed in 1993. He never wanted the Grandchildren to know the horrors of the war. He never spoke of it in all those years. What a good man. What a really good man. My Dad's Father was US Army-Air Corps, Pacific War as well. Another great man. These men did what they had to do, came home and raised large families. The campaign medals and awards of heroism and bravery we discovered after these men departed up for somewhere far better. Merry Christmas to all.
Fascinating! Especially the fact that the bomb was travelling faster than the speed of sound which is why the noice didn’t occur until after the bomb hit. Do you know what the radius of the blast was? I’m sure it’s out there somewhere but it would be good to see that on Google Earth.
Sharon Collard hello! The bomb exploded about 2,000 feet above the ground, directly above the atomic dome, and everything within a one mile diameter was totally destroyed except for a few earthquake proof concrete buildings. Everything beyond the one mile was burned down or on fire for about another two miles beyond the one mile diameter of complete destruction. Roughly another two miles beyond that was extreme heat causing second and third degree burns, so they say the whole blast radius was about five miles. There was also large amounts of nuclear contamination left behind.
Did you account for the terminal velocity of the bomb? 900+ mph seems a little fast for a falling object, on earth, even streamlined. Maybe in a vacuum? Could be correct but I find the fastest it can fall when factoring in air resistance is only about 200mpg max. Not sure about that though.
Very interesting video. My one small nit-pick is that when you plotted the aircraft tracks you did not take into account of the circular track of the turn itself, as aircraft do not turn to a new heading instantly. Assuming a speed of 270mph and a bank angle of 60 degrees (equivalent to a 2g turn) for the tight turn away from the blast it would have a turning radius of about half a mile and took about 20seconds to complete the turn. You can plug in various values of speed/bank angle to see how it affects the turn rate and radius of turn on this website: www.csgnetwork.com/aircraftturninfocalc.html
Little Boy exploded at a height of 1,968 ± 50 feet (600 ± 15 m). You can read about the effects here: en.wikipedia.org/wiki/Little_Boy#Bombing_of_Hiroshima
Robin - the atom bomb exploded over the Shimsu hospital in the middle of the civilian populated 4 square mile area of Hiroshima almost as per plan with a blast radius of about 1 mile contained 3/5 of the Hiroshima civilian population - the bombing scientists did calculations to maximize the blast radius on the civilian population by optimizing the aerial blast height (altitude) in order to kill as many Hiroshima civilians as possible with the bomb - allowing the bomb to detonate any higher or lower would have reduced the effective blast radius of the bomb on the city - 120,000 dead Hiroshima civilians men women children even babies in nappies was the result - a war crime by any standards
@@acoow - really? - Both the Emperor and Prime Minister of Japan categorically stated the surrender was motivated by the Russian attack on Japan and even our very own General LeMay who was in charge of the bombings said "The atomic bomb had nothing to do with the end of the war at all." I'd rather believe these expert witnesses than you anyday
@@majorrgeek The calculations were done to have the maximum effect on all people whether they were military or civilian. (and factories/structures too of course). If they wanted to kill only civilians then they would have put a different plan in effect.
I had an old neighbor who was an engineer on Tinian during World War II. While he didn't actually fight in the war, he did get a chance to see, take a photo with, and work on the Enola Gay plane. He gave me a copy of that photo. He passed away in 2014; we are losing veterans too fast.
Nice video man enjoyed this very much. Unfortunately the history channel is all about chasing Sasquatch now and refuses to create informative content like this.
Karl Olsen wind resistance would slow the marble down because it’s so light. Wind resistance could not slow a 10,000lbs bomb as easily as it could a marble.
Karl Olsen the more mass you have the more acceleration you have. The mass of the marble will reach a point of equilibrium with the wind resistance and stop accelerating where as the bomb’s mass will continue to accelerate much longer before it reaches an equilibrium.
The acceleration due to gravity will be the same for any two objects, but their terminal velocities will be different if their ballistic coefficients are different.
Mhm mass has no bearing on acceleration, but it does have a bearing on velocity. I assume 'da bomb' would have a seriously high terminal velocity, due to the insane density of uranium.
Knew an older gentlemen in the army Corp of engineers sent in to help with the cleanup even after a week he said there were steel I beams laying under the rubble still glowing red from the heat. Glass bottles fused to the concrete sidewalks, Terra-cotta tiles that were warped and melted, he said you could see where people had been standing when it went off because of the atomic shadowing and the fact that there would be little blobs of coins laying on the ground fused together, plates in a nearby restaurant had melted together. The heat was insane. He said about seeing people that looked like scorched logs, not humans, ones far enough away to not be vaporized but killed instantly and turned to carbon.
Detonated at about 1900 feet. From a barometric pressure fuse. The height was chosen to maximize the mach stem effect of primary shock wave and reflected shockwave converging which produces a blast over pressure of enormous strength. It will wipe a building from its foundation. The burst height of the bomb could also be gauged from the flash burn on objects and measuring its angle then triangulating that from a number of varied positions. The converging lines will give you the detonation point.
Originally the aiming point was the T-shaped Aioi bridge, and yeas, "Enola Gay" bombardier Tom Ferebee missed 300 feet, but the A-bomb detonated at the altitude 1890 feet, but a little further, above the Dr. Shima clinic. Not above the former Promotional Industrial Hall now called the A-Dome. And one moment. After the explosion all planes No.82, 89 and 91 made three circles around the stricken city, that's suggested the flight around the mushroom cloud on the safe distance, that was about 1 mile, as Col. Tibbets said in his memoirs. Nevertheless, this is the great stuff! Thank you!
I was able to meet Thomas Ferebee a few years before he passed away. I was living in Mocksville NC at the time and I met him at a Veterans Day celebration. Very nice talking and friendly gentleman.
I was good friends with Richard Nelson and I spent a lot of time with Theodore “Dutch” Van Kirk. I also spent about 4 hours on the phone with Paul Tibet’s.
TarHeel - war criminals are never gentlemen or nice people - this man was responsible for killing 120,000 innocent civilians, woman, children even babies in nappies - how disgusting - he should have been hung
Quick correction. The bombs weight is a non factor. The air resistance against it may be less but the weight did not change the acceleration towards the ground. Perhaps slightly for air resistance but really not much.
*pushes up glasses* Actually, the bomb didn't detonate directly over the Atomic Bomb dome. It detonated over Shima Medical Clinic, about 400 feet to the southeast of the Dome.
Actually, weight is irrelevant. Acceleration due to gravity is constant on all objects. A brick dropped at the same time would’ve reached the same approximate speed of the bomb at the same time.
My uncle was flight engineer on the B-29 The Great Artiste. It was the only plane on both missions.
So is this correct?
en.wikipedia.org/wiki/The_Great_Artiste#Hiroshima_mission_crew
brt 123 According to Wikipedia the only person to witness both explosions was Lawrence H. Johnston, a physicist. However, it does seem that the aircraft crews were swapped around so it is a bit confusing. The Great Artiste appears to have had 2 completely different crews for both flights.
He may have been one of two flight engineers on two different missions.
was he John D. Kuharek?
Sweeny's crew flew the Great Ariste on the first bomb run. Sweeny flew the Bosckar on the second bombing mission (the plane that dropped the bomb)
This wiki shows the Nagasaki crew (same as the Hiroshima crew on the great artiste)
en.wikipedia.org/wiki/Bockscar
Had a dyslexic moment and thought the title was “ gay atomic bomb” I was like WTF....
Only reason why I clicked
Don't enter the blast zone. Too much gaydiation
I was confused so I clicked
Edit: you’ll need a gayder counter after that! BUD UM DUM PSHHH
They leveled the entire gayborhood with it
Japan reject the woke culture in America. Woke Americans sure as f --k find the atomic bombing justified.
The bomb never hit the ground and never was intended to do so, it self detonated at eighteen Hundred (1800') feet above the ground to create a greater blast impact area, so the "intended" target (center of the T bridge) made no difference that the bomb detonated 450' just shy of the intended chosen point. Like Horseshoes and hand grenades, close is good enough for a score. Side note that the greatest IRONY in history was missed in the bomb drop, as had they used one of the other 2 planes on that mission, the irony could never be topped, that being the plane named "Necessary Evil" piloted by William George Marquardt.
Yep, my late father used to say "Close only counts in horseshoes, hand grenades, and minor nuclear weaponry." (And compared to the nukes available during the Cold War, Hiroshima was minor.)
True, but the plane wasn't named "Necessary Evil" until after it participated in the bomb drop (it was the camera plane)
Don Michael I was about to comment on this point too! Well put Sir...
Don is absolutely correct. The bomb never actually hits the ground and was setup to detonate at least 1500' above the ground. I'm not sure this was factored into the calculations for this video. Very interesting nonetheless.
M Detlef , he is absolutely right, compare to bombs made AND tested in the Cold War, little boy and fat man were trivial in comparison. And they were TESTED as well, at nuclear test sites in the deserts of the south west, so yes I would say we can compare the bombs dropped on Hiroshima/Nagasaki to future nuclear technology. WWII is by far my favorite period in history, but that doesn’t mean I think they had the greatest technology back then.
My dad was a Navy Seabee who helped build the airfields on Tinian. He rarely spoke about this time except when I became aware of these world events. when I was very young in the early 70’s. I became a huge WWII amateur historian and also a Naval aviator.
I have had the opportunity to visit Nagasaki on one of my port visits back in 1983 and went to the Peace park. The Japanese people were and are so polite and a joy to talk to. I still fly to Japan and greater Asia as a pilot to this day. I have even flown the return flight from Japan near Iwo and the Marianas on flights to Australia.
The only thing on my bucket list that I want to see after a lifetime of worldwide flying is to walk where my father walked as a 17 year old Seabee on Tinian. He lied about his age and went into the service at 16 years of age. This is a huge source of pride in our family and it rubbed off on his sons as we have a Marine, an army guy and me the Swabbie.
Thank you for this excellent video. Fascinating seeing this mission from this point of view.
Thank you and your father for your service.
I genuinely hope you get to complete your bucket list and head out to Tinian.
Cheers from Canada!!!
I was a Seabee. After my enlistment I worked my way up the ranks in commercial flying and retired as a 747 Capt. in 2014. I flew in the Pacific quite a bit and enjoyed my layovers in Japan and studying history. My dad was a Marine Corps Aviator in the Pacific in WW II. He flew TBF's.
So basically you feel ok around japanese because they are friendly and polite and you don feel ashamed ? Not as a person but as an american ? Oookkkkk.....
@@dbphotography2770 There's not a damn thing about the nuclear attacks on Japan for Americans to feel ashamed about.
So... In your ww2 studies, have you figured out that the Allies were the bad guys or do you just read books written by the winners and watch movies? Lol
I love your videos. Putting history to maps is so intriguing.
Thank you and I'm happy you enjoy them!
"A few minutes after that, the bomber "Necessary Evil" took off". Wow these names were on point. So sad.
redeemer216 - "Necessary Evil" ?? still a war crime
@cinnamongirl3121 - there is no evidence the bombs ended the war in fact the war continued till the end of August 1945 - Hitler too began killing civilians in order to accelerate his victories and end the war - you condone him too? - read what our very own experts General Curtis LeMay who actually pioneered strategic bombing of Germany and Japan said "The atomic bomb had nothing to do with the end of the war at all." and the ww2 Prime Minister Suzuki of Japan on Aug 13 "If we miss today, the Soviet Union will take not only Manchuria, Korea, Karafuto, but also Hokkaido.This would destroy the foundation of Japan. We must end the war when we can deal with the United States.” that should give you a clue it was the help from the Russian invasion Aug 8- Sep2 as the real reason the Japanese surrendered earlier than expected - also you cannot or should not try to differentiate a war crime ( killing civilians) as something that was necessary or played a "key role" - I don't know about you but the facts show we did not win the pacific war by killing innocent unarmed civilians, women and children - I don't hate USA but people like you who condone killing civilians is un American, un patriotic and not what old glory stands for - need to " learn history" would be you
The men from that generation knew how to get shit done
@Incerthose A. IntoBee - Hirohito's so called surrender speech of Aug 15 is not a surrender speech - there is no mention of surrender, no mention of Potsdam, no orders to surrender, no times dates for a surrender it is simply Hirohito (but not the big 6 who remained deadlocked) "accepting the provisions of their (Allies) joint declaration" - they included the Soviet Union which was not a signatory on the Potsdam Declaration July 26 so the King Pin here is the Soviet Union as backed up by this statement from the Prime Minister Suzuki of Japan on Aug 13 "If we miss today, the Soviet Union will take not only Manchuria, Korea, Karafuto, but also Hokkaido.This would destroy the foundation of Japan. We must end the war when we can deal with the United States.” and by Hirohito on Aug 17 "Now that the Soviet Union has entered the war against us, to continue the war under the present internal and external conditions would be only to increase needlessly the ravages of war finally to the point of endangering the very foundation of the Empire's existence With that in mind and although the fighting spirit of the Imperial Army and Navy is as high as ever, with a view to maintaining and protecting our noble national policy we are about to make peace with the United States, Britain, the Soviet Union and Chungking." - no mention of the bombs - it was Russia and Stalin that made Japan surrender - you can't beat the Emperor's opinion with your crap
@Incerthose A. IntoBee - fact check the August 15 Hirohito broadcast was hopelessly unreliable and confused the hell out of everyone especially the Allies since IJA did not stop fighting on August 15 but resisted and continued to hold enemy territory - "Japan agrees to the terms set firth by (the allied nations)" is a lie not a surrender especially if the IJA continue the war in some of the biggest land battles of ww2 to the end of August as the Commander in Chief of Soviet Forces Vasilevskii explained "the armed forces of Japan can be considered capitulated only from the moment when the order is given by the Japanese Emperor to cease military actions and lay down arms and when this order is in reality fulfilled" - the order to surrender finally came after the USSR had handed Japan its biggest land defeat in all of Japan's history - they achieved in 3 weeks what we couldn't do in 3 years by taking Manchuria, N Korea, Sakhalin and Kuriles from the IJA in some of the fiercest battles of the war killing 90,000 IJA and taking 600,000 IJA POWs even though they all swore a fight to the death - that's not a surrender on August 15 so the "REALLY STUPID?, brain dead fuck. fucking imbecile!" would be you
"Haha it says gay on the plane"
"oh sh-"
run
This comment way underrated
Enola Gay was Paul Tibbets mother, the B-29's pilot
😅🤣
Let’s be honest no one search for this video but we’re still watching it
@sirla blarka no he's right
hahaaaa :DDDD Yep, true
Yes, but I’m glad it came up as a suggestion
Wouldn't have had it recommended if he hadn't done the Kobe video. Sad but true...😢
I live in Japan right now. Most Japanese schools do not teach much about wartime. A city named Kokura that now has a bullet train station stop was targeted as an "A" option and a "B" option target. A cloud obscured the target and only that spot on an otherwise perfect day. The flew around until moving on to Nagasaki. If hiroshima had been unable to have the target aquired the b plan was kokura. Most folks in kokura nowadays have no idea they were the only city in history to be routes 2x on nuclear wartime bombing runs. The city was mostly spared as the military wanted it fresh for pre and post bombing pic/damage reports.
I was in graduate school with a young woman from Japan. She must have been born in the early 1970's and lived in Yokohama. When she was a little girl, her mom told her not to play in the rain or her hair would fall out.
I've been to japan a few times and visited the museum in Hiroshima, the way they've worded the timeline of the war is kinda sad. My friend lives there with his japanese wife, and they are clueless on their history
@@benstern310 I've been to the Nagasaki Museum. Japanese tend to focus less upon the history and more upon the present and future. They remember those that were killed rather than the events themselves. And their traditional ceremonies are a powerful reminder in the Japanese way.
What I found very scary at the Nagasaki museum, was the straight up way they presented the Nuclear capacity of countries. Russia: 7300 warheads. US: 7000. China: 300.
Those are pretty scary figures.
philster611 they had one similar to Hiroshima museum! So sad
@@benstern310 Yes. It overlooks the Peace Park, Its actually very beautiful. You can walk down from the museum down a little gradient to it and you can see the memorial at ground zero.
According to the numbers, we have the capacity to end human life on the planet many times over
"that kind of weight being pulled towards the earth is gonna accelerate really quick" - heavy things do not fall faster, but mass, material and shape determine the effect wind resistance has on an object. My thought would be to stay under the speed of sound to avoid troubles.
It was odd hearing that common misconception and "I did the math and found the terminal velocity to be 943 MPH" in the same sentence. If you did the math you would know that's now how it works!
Sry but isn't both wrong?
Clearly "that kind of weight being pulled towards the earth is gonna accelerate really quick" is very missleading because there is very little effect of different object weight on falling spped.
But "Heavy thing do not fall fast" is wrong, isn't it?! At least if faling means moving towards earth surface.
The thruth is: If objects have a millon times lass mass than objects in their neighbarhood, their mass doesn't really play a significant role.
Check the physics:
gravitational acceleration = object mass/gravitational Force a= m/F
Where gravitational force is:
F = G * (m1*m2)/r²
So mass of falling object m2 does influence the falling speed.
Although with m1 beeing much much bigger than m2, effect of m1 is tiny.
In other word mass of erth dictates how fast bomb falls down to earth.
Mass of bomb indicates how fast erth falls up to bomb.
Of course in the total balanced speed, obviously the eatrth is not falling up to the bomb.
A heavy, aerodynamic-shaped object would fall at an acceleration very close to a freefall in a vacuum, so air resistance is minimal. Using his time of 43 seconds, a freefalling object would fall 29,700 feet at a terminal velocity of about 950 mph, so the figures quoted in the video are fairly close, 29,200 feet (release altitude to detonation altitude) and 943 mph. I always thought that the bomb had a small drogue parachute to delay the fall to give the aircraft more time to get away, but if the figures he give are correct, then it would seem there was no drogue.
@@karhukivi AN602 Zar bomb had such a parachute and I think i read this was a serious challenge - but maybe just due to its enormous weight
Doesnt look like Little Boy had a parachute: en.wikipedia.org/wiki/Little_Boy#/media/File:Little_Boy_Internal_Components.png
Excellent video. It's amazing to me how they did all of this without GPS and solid weather reports.
One minor thing: if someone hasn't already mentioned it, the location of the Hypercenter or explosion is a little off. It didn't explode directly over the dome as you marked. It exploded a little to the east over what is now a small side street in the city.
If you ever get a chance to visit the peace park and atomic bomb museum there, it is a surreal experience.
Absolutely correct. The street to the right of the Dome area was the hypocentre. Then it was a hospital, today a dental centre. If you walk down the street you will see a small monument marking the exact hypocentre. The Dome "survived" due to the detonation being almost exactly above (about 400' off to one side) but the majority of the blast came from almost directly above. A visit to the area will show you where the monument is -1 Chome-5-25 Otemachi, Naka Ward, Hiroshima, 730-0051, Japan
lh5.googleusercontent.com/p/AF1QipOJKSKlZxguvVamr-b7rzbk5bXl3dFOclfCRChi=w408-h306-k-no
Right! The hypocenter was over the Dr. Shima clinic at the altitude of 1890 feet above the ground.
i love these videos, so glad i stumbled upon this channel!
When I was reading the title I read it as "Ebola gay atomic bomb" and I was like wtf ,tbh that would be a devastating weapon
It would give you 3 diseases at the same time
*Its a joke please don't kill me*
same
Just moika
@@Henriburger1 ROFL. I don't care if that's insensitive, that's hilarious. Spit out my coffee. Thank you very much for the chuckle! :P
As a history buff and a google/earth fan I've often checked out actual places for historical events. This is awesome. Binged on every video Forrest has posted in the last day. Thank you for your research and informative/entertaining vids. Loved them all.
arvos21 I’m happy you enjoy them and thank you for your kind words!
Please do an episode on the route of USS Indianapolis!
....a doll's eyes....
@@Teajryan Smile you son of a... :P
planelover2000 I have some original photos of her at sea from ww2
Thank you for posting this video. These lessons in history should never be forgotten.
I have been to the Bomb loading pits on Tinian. It's incredibly still and eerie. These videos are fantastic- Thank you.
I have been to the bomb loading pits as well. I was deployed to Tinian in 1994 as part of a military exercise. We were playing the bad guys, the opfor. We made out headquarters at a large bombed out two-story building that used to be the command center for the Japanese forces on the island.
@@Bellthorian - there is more than sufficient legal matter in just the Hague documents alone to incriminate USA ( or any side) in aerial bombing war crimes - the fact that it was swept under the carpet at Nuremberg and at Tokyo for obvious reasons doesn't mitigate USA - Truman specifically targeted defenseless civilians, women and children and said we are going to kill them to save the lives of soldiers and will remain a war criminal for all eternity
@@majorrgeek I could care less what the Hague documents or anyone else say. War should be just that TOTAL war. The bombing of civilians is perfectly justified because in order to win a war you have to break the enemies will to survive. Look at how "Limited" war has failed in Vietnam, Afghanistan, Iraq, all limited war does is allow the war to go on forever. All it does is benefit the military industrial complex, the money in war is making it last as long as you can. There is no money in peace. Truman is a hero, dropping the bombs on Hiroshima and Nagasaki saved MILLIONS of lives in the long run, both civilian and military.
@@Bellthorian - USA did not declare total war and the Allies did not declare a departure from the declared humanitarian and legal articles of war (Hague) at any time during WW2 either - in fact the Allies brought Japanese and Nazi war criminals to justice under those same articles which applied properly and evenly also incriminate Truman a war criminal during WW2 and in Korean war - really you are upholding to terrorism by the Truman legacy - that if a criminal gets away with a crime he wins something
Also speaking of "hero" Truman actually bypassed Kyushu defenders and deliberately targeted civilians, women and children with nuclear weapons which by definition is terrorism and a war crime and a brazenly cowardly attack which also undermined the heroism of our fighting Pacific marines - deliberately killing civilians is un American, unpatriotic and not what old glory stands for - defending this action is no better
as well there is no evidence the bombs ended the war or made Japanese surrender nor "save millions" - and even if it did still does not change the fact Hiroshima is a war crime - you got to get your facts right
@@majorrgeek It is only a War Crime to revisionist people like you. Look at the invasion of Okinawa and the staggering casualties on both sides. Extrapolate that to invading the mainland and you are looking at a million dead American soldiers. I think you don't understand my point of view. It is in my opinion that war should be so horrific that people will think twice about starting them and only then can we as a species try to learn other ways to resolve our disputes instead of violence. If there is no pain, there is no desire to change the behavior.
As an interesting side note the "Little boy" bomb was loaded with 140 lbs of Uranium 235, yet only about the weight of a US Dollar Bill fisioned and created all that damage and the huge mushroom cloud.
Can you imagine the distruction if most or all of the Uranium had fisioned?
Bigger than the 1/2 scale tsar bomb the USSR set off for sure!
@@spingebill8551 I love how the American mindset for the cold war was precision amd the Russian mindset was "just make it bigger" lol. Great pieces of tech but it's a great thing they were never utilized for their intended purpose.
Azriel look at the Russian super cruisers. They are just battleships with extra steps lol.
ktphotog Nukes will never go off with 100% efficiency, the intended blast wasn’t supposed to be much bigger than what the result was, the scientists had a general idea of how much uranium was needed for what size explosion. ( America tested nukes multiple times before nuking Japan )
@@sicilianknight6310 America did NOT test nukes "multiple times". There was only one test, and it was of a Plutonium device. It took place less than 3 weeks before Hiroshima. The Uranium bomb design was never tested - many of the scientists had their fingers crossed on August 6 (they were confident, but they were also worried).
Good video. Very interesting. You forgot air resistance when calculating the bomb's velocity when detonating. It was subsonic, not supersonic. I assume you used conservation of energy (potential=kinetics, and you had the altitude known) to calculate the velocity, but that is ignoring air resistance. Also, you mention it wheighing 10.000 lbs and thus accelerating quickly. All objects regardless of their mass falling accelerate at the same rate due to gravity (g = 9.81m/s sq), although form factor and fluid dynamics greatly affect them. Sorry, english is not my 1st language.
Agree. Any object in free fall reaches a terminal velocity where the force of air resistance equals the force of gravity and acceleration becomes zero.
The air resistance depends on the shape and size of the object and air density, and increases with the square of the velocity. The bomb had fins, which would increase drag. If we knew the size and drag coefficient, along with its weight and an estimate of the air density, we could calculate the terminal velocity. However, just looking at an object with a wide cross-sectional area and fins, seems unlikely that terminal velocity would reach supersonic. And my guess it that it was designed to not reach supersonic so as to not screw up the detonators.
Yeah, he missed that one.
blalolblalol not accelerating quickly, but not being slowed by air resistance due to it being two feet in diameter and weighing 10,000 lbs. it went from 31,060 feet to 2,000 ft in 43 seconds. Average of 540 mph if it left the plane at 540 mph and remained at that speed. But it started at zero mph and had to go well past 540 in order to average it. Acceleration formula was used with air resistance factored in.
@@forresthaggertychannel4301
Jeez...
Its forward speed was about 250 to 300 mph (approximately) at the moment it was dropped which was the forward speed of the aircraft.
It began decelerating immediately along the horizontal due to air resistance once it cleared the aircraft.
It's acceleration vertically (downward) at 1g.
32.16 fps. 22 mph every second till it achieved the maximum speed capable of a falling object within the Earth's atmosphere. 🙄
VALHALLAXE math and physics don’t lie. Work it for yourself. 43 seconds from release to detonation from 31,060 ft. to 2,000 ft. starting at zero for vertical speed.
It's mindboggling what man can do when he puts his mind to it.... It's almost unimaginable. Thanks for the video, fascinating.
Thanks for the video. Your analysis n calculations were very interesting, especially your graphic map of the bombing run, release point, area of initial impact, etc.
Looking forward to your next video.
Fu Yu thank you for your kind words!
I was taught that the bomb was not an impact bomb, but was detonated at about 1800 feet above the target area.
correct
To give the max damage
I lived in Hiroshima for a year in 2009-2010. Became absolutely fascinated with the atomic bombings and walked past the dome almost everyday. It’s so surreal to actual see it and trying to imagine the bomb detonating above.
Just found your videos and I really like this style. By the way, Aioi in Japanese would be pronounced like "eye-oy".
Firegem Weeb
Very educational. Puts the mission in perspective.
Great video and great insight to a very historic day. Never had heard of the 2 named chase planes. Most interesting. Well done sir.
I went to Hiroshima couple of years ago and visited the museum, it was pretty heart breaking and the Japanese did a good job displaying the history, there are a lot of tourist from all over the world there.
Is It safe to go there ? No radiations ?
@@tonybigalow3236 not higher than any other cities ....
@@KennyLamTravel Ok. Thank you Sir
If they'd turned left, they would've dropped the bomb around 4°15'34" in the Ceram Sea south of Papua. I'm sure the local fishermen wouldn't have been too happy about that.
Bomb travelled at 900 miles (per hour)? No terminal velocity calculation on something that large?
Exactly, was thinking about the same. No terminal velocity inclusion puts the whole 'mapping' stuff really not so accurate IMHO.
krazybubbler the map is still accurate because the air drag was calculated by a physics professor, like he said. I got 457 mph for the velocity at impact though, and that’s accounting for drag and assuming a cD of 1, which idk if that’s accurate
more like 300 mph.
@@SketchRC Rather hard to get accurate numbers unless you can find the exact dimensions of the bomb, the exact release speed of the bomb, exact altitude it was released and the atmospheric measurements that day. So rough is the best we can get. Also the bomb didn't impact the ground.
College Student well the exact dimensions are known, and so is the time of flight, altitude, speed of release (which was 0 in the vertical direction) and atmospheric measurements that day. That said, I just did my best to come up with something approximate to show that it isn’t 900 mph. The density of the atmosphere (which is thinner the higher you get) makes me think it would’ve been closer to 500 mph, but like I said idk what the drag of a bomb actually is so it could be much higher or much lower.
I found you in my suggestions and am SO glad I did. It's a wonderful thing to be able to use modern technology to "see" history. Thank you!
yes it is a wonderful thing to be able to use modern technology to see the history of world's first modern instance of a nuclear war crime
@@majorrgeek Obviously (or not), I was praising Google Earth's capabilities and this RUclipsr's presentation. Or did you really think I was stoked about the bombing? Silly rabbit.
@@antiquemacabre - I knew what you were praising and now you also know what I was not praising
Is this recommended to everyone because it has "gay" in the title?
No.....
@@oldv1288 So you're saying to me that this wasn't recommended to me because it had Gay in the title?, what about all the other completely random videos that have been recommended to me then? they all had gay in them as well!
@@hulfe2514 that was probably RUclips's way of catching your attention because perhaps you never picked up a history book before.
@@oldv1288 Oh well, I'm still in school learning, I just haven't learned about this exact thing. If I had been told this before I would've certainly remembered, and well I have read a lot of books, mostly fantasy, but definitely also a bunch of history books!
RUclips is just having a stroke again.
Nicely done, Forrest. The work you do in this channel is great. I've studied war since I was 9 and what you're doing here is ... magnificent.
My father was in the US Army Medical Corps. He has a graduate degree in microbiology from Vanderbilt. There was a small medical company that was there to study the effects of the bombs if a surrender did occur. Which it did, his medical team went to Hiroshima a few weeks after the surrender. His stories were tales of horror something no other person should ever have to endure. My Father passed in 1994 he is missed.
Geo HVL
- sad about your father - however, it is wrong for us to assume that a war crime can be differentiated as an event which was somehow necessary because it was not and it was certainly not the main reason for the Japanese surrender
@@majorrgeek
Lol it was defiantly necessary common sense would tell anyone that. The population of Japan at the end of WW2 was around 71 Million. 50,000 civilians were killed with the atomic bomb. 20,000 Military members. If an invasion would to have occurred. Easily half a million soldiers would have been killed as well as hundreds of thousands of civilians. Come on man, go look this stuff up.
@@tycardwell2991 - I have researched this topic, more than you it seems, you cannot go killing civilians based on an assumption they would attack you if invaded - your comment simply lacks the self defence defense - also the a bombs never ended the war either
@@majorrgeek
You are being completely ridiculous. Of course you can. Quit playing this moral high ground bull shit. Innocent civilians die in war. It fucking happens. If the Japanese didn't want their citizens getting killed they wouldn't have declared war on China and killed 3.9 million innocent Chinese civilians. INNOCENT CIVILIANS. JAPAN WAS THE AGRESSOR. They declared war on China. They declared war on the U.S. they pay the consequences for it. So shut the fuck up and quit defending people who threw Filipino babies up in the air and caught them on their bayonets jackass.
@@majorrgeek Yeah, we should launch a posthumous trial against Winnie Churchill, the greatest war criminal of them all.
Or, perhaps you should just knock it off....
Forrest, my favorite video yet! Loved the navigation aspect.
My father was a 21 year old B25 navigator on Tinian that morning. I would love to know where the officer's barracks might have been located. He said he heard the B29s taking off at all hours of the day and night, and was pretty sure he slept through the Enola Gay's take off. He would not have survived the invasion of Japan, which means neither I nor my brother would be here today, so I'm very grateful to President Truman for essentially allowing me to come to be. I've never heard about the bomb going supersonic. If I'm not mistaken, it had a parachute attached to it, and I can't imagine a low tech chute not being torn to shreds while moving at those speeds. Oh well, technicalities.
Good point about being allowed to be born. A whole bunch of us owe gratitude to President Truman for his final decision.
@@clarkeugene5727 I'm glad I got notification of your posting. I actually was in Hiroshima last September. Having actually been there, I can say that there isn't a single picture of the event that comes close to physically being there. There was an older gentleman protesting next to the tower, with a large poster of his burned, maimed mother. Apparently she was pregnant at the time of the blast. His poster, in English stated that she was a victim and he was a survivor of the blast. I went up to him, I was mildly angry because personally, I put no stock in people complaining that they are "victims", and informed him that I too was a survivor. I told him the story I posted above. He said nothing, but he bowed to me, and it was a very deep Japanese bow. Like everything else at the site, it was very, very humbling.
@@davidh9844 You were fortunate to be able to visit the site last year. Humbling for both sides for sure. I would like to suggest an interesting book for you. It is called "The Last Train From Hiroshima" by Charles R. Pellegrino. I got the CD's so I could listen while driving. It tells the story of people that boarded a train in Hiroshima after the bomb and then headed for Nagasaki just in time to witness the second one in real- time. So, they actually survived both blasts! Highly recommend. Nice to meet you by the way.
Same. My grandparents owned a business in Luzon, exactly where the IJN landed at the beginning of the war. Japanese occupation was horrific.
I cannot believe people can compare American occupation to Japanese. Yes, there were plenty of war crimes to go around.
But I’d rather be occupied by the Constitution then a ruthless military dictatorship.
Almost ten years into RUclips and It finally suggests this guy. Better late than never. Thank you very smart sir. Tips fedora
the bomb could not have exceeded the speed of sound from just falling. There is a term called terminal velocity where the wind resistance increases as the object moves faster. Most objects top out at around 120 mph in a dead fall. Also the bomb was designed to detonate at an altitude of about 1900 ft.
Armus Skinofevil - the whole city of Hiroshima became the target for the atom bomb in fact it would be impossible to defend in any court since US did calculations to maximize the blast radius on the civilian population by optimizing the aerial blast height - Truman specifically targeted innocent civilians, women and children and said we are going to kill them to save lives of soldiers and like Hitler's holocaust Truman failed to observe the articles of War
@Incerthose A. IntoBee - "and what did the us calculate this with? There was no data for such calculations having only detonated ONE bomb before. Goddamn, you are STUPID son. Do you always just make shit up to prove to those who didn't already know" ????
read this bozo "The T (Theoretical) Division at Los Alamos had predicted a yield of between 5 and 10 kilotons of TNT (21 and 42 TJ). Immediately after the blast, the two lead-lined Sherman tanks made their way to the crater. Radiochemical analysis of soil samples that they collected indicated that the total yield (or energy release) had been around 18.6 kilotons of TNT (78 TJ).[103]
Fifty beryllium-copper diaphragm microphones were also used to record the pressure of the blast wave. These were supplemented by mechanical pressure gauges.[104] These indicated a blast energy of 9.9 kilotons of TNT (41 TJ) ± 0.1 kilotons of TNT (0.42 TJ), with only one of the mechanical pressure gauges working correctly that indicated 10 kilotons of TNT (42 TJ).[105]
Fermi prepared his own experiment to measure the energy that was released as blast. He later recalled that:
About 40 seconds after the explosion the air blast reached me. I tried to estimate its strength by dropping from about six feet small pieces of paper before, during, and after the passage of the blast wave. Since, at the time, there was no wind I could observe very distinctly and actually measure the displacement of the pieces of paper that were in the process of falling while the blast was passing. The shift was about 2 1/2 meters, which, at the time, I estimated to correspond to the blast that would be produced by ten thousand tons of T.N.T.[106]
There were also several gamma ray and neutron detectors; few survived the blast, with all the gauges within 200 feet (61 m) of ground zero being destroyed,[107] but sufficient data were recovered to measure the gamma ray component of the ionizing radiation released.[108]The official estimate for the total yield of the Trinity gadget, which includes the energy of the blast component together with the contributions from the explosion's light output and both forms of ionizing radiation, is 21 kilotons of TNT (88 TJ),[112] of which about 15 kilotons of TNT (63 TJ) was contributed by fission of the plutonium core, and about 6 kilotons of TNT (25 TJ) was from fission of the natural uranium tamper.[113] A re-analysis of data published in 2016 put the yield at 22.1 kilotons of TNT (92 TJ), with a margin of error estimated at 2.7 kilotons of TNT (11 TJ).[114]
As a result of the data gathered on the size of the blast, the detonation height for the bombing of Hiroshima was set at 1,885 feet (575 m) to take advantage of the mach stem blast reinforcing effect.[115]"
en.wikipedia.org/wiki/Trinity_(nuclear_test)#Energy_measurements
once again kinda proves the stupid one would be you
@Joe Mamma You're a complete idiot. Your comment proves you don't know jack shit about history because everyone knows the bomb detonated at about 2000 ft. That is in history books. Just like everyone knows the Japanese DID NOT surrender because the U.S. dropped 2 atom bombs on them, that too is documented in history. But I will not school you on that. You can remain a complete fucking idiot and continue to make an ass out of yourself with every comment you make. Damn you're STUPID!
There is no restriction on the terminal speed of a falling object because it's near the speed of sound. The 120 mph figure you cited is what is typical for a human skydiver, not all objects.
The air drag will increase due to increased turbulence and the generation of a shock cone, but the object can still accelerate further if it has a small enough cross-sectional area in relation to its weight(sectional density). Remember also that the bomb was dropped from an altitude of about 31,000 ft, where the air density is considerably less and the bomb would free-fall almost as if it were in a vacuum. Judging from the weight of the bomb(~4,400 kg) and its streamlined shape, I would estimate that the air drag at the falling speeds encountered would not be significant compared to its weight(mg = 43,120 Newtons).
We could test this assumption by comparing the actual time of free fall of the bomb(44.4 sec) to the time it would take to free-fall in a vacuum. In a vacuum, the bomb falls with constant acceleration g= 9.8 m?s^2 and the distance is related to the time by d = 1/2*g*t^2. Solving for t: t =sqrt(2*d/g). Plugging in the numbers for d = 4,400 m - 600m(detonation altitude) and g = 9.8 gives us a time of fall of 42.4 sec, just a little bit shorter than the actual time of 44.4 sec. This suggests to me that the air drag on the bomb was nearly negligible in comparison to its weight. We can now get a good estimate on its terminal velocity by assuming that it was subject only to the force of gravity(its weight). Under constant acceleration: v = g*t = 9.8*42.4 = 416 m/s or about 930 mph, well above the speed of sound at sea level.
Credentials: MS in Physics and 10+years teaching calculus-based Mechanics and Electromagnetism classes in college.
@@videomaniac108 Well, that settles that... :)
Dude this video was AWESOME. Great work 👍 I genuinely learned a lot. You should do one about the blast radius and fallout area shown on google earth as well!
5:40 He's saying the bombardier missed his target.
That was certainly close enough that it could not have mattered.
He's just stating the facts
Great video. Nice work. A lot of people watching may not be aware that the bomb detonated 1,870 ft (580 m) in the air for maximum effect.
8:09 "that kind of weight is going to accelerate..." basic physics 32.18 ft/s2 - weight has nothing to do with it. Initial velocity and drag determine acceleration and terminal velocity.
Chris Primavera yeah the biggest eye roll that I had in a while
What are those units? Feet per s2?
@@leosalonen1564 32 feet per second, per second. Rate of acceleration.
@@chrisprimavera7607 Thanks! I'm unfamiliar with imperial units as I'd usually see it written as 9.81 metres per second^2
Maybe he meant that weight makes a difference in the context of air resistance? It's true that a feather and hammer fall at the same velocity in a vacuum, but not in Earth's atmosphere.
Great video thank you for taking the time. I never knew the exact route they flew nor the release point. I do now. Thanks for the work and video.
The range of a B-29 was 5,592 miles. I don't know what this airplane flew, but it was a long ways.
I was born and grow up in this water city where I love most. I know about what atomic bomb, but I did not know about the detail of the way such as the fright course to carry the atomic bomb “little boy”
Why do you know the detail information and how did you get it..? from books or something else..?
Anyway, I would like to know and learn much more about atomic bomb and wars and then want to let people know that as a person who was born in this beautiful city called “ Peace city”
My father was a WW2 pilot after the war he went to work for a commercial airline, he used to tell me the biggest concern was the risk of fires in the airplanes he told me that sometimes arter coming back from a mission he couldn't get off the plane and 2 people had to pulled him out
I remember when google maps suggested to take a canoe or a jetski to cross the pacific xD
It was probably already mentioned here, but Little Boy didn't explode over what is now called the Atomic Dome building. It explode right above the Shima hospital, 5 minutes away from both the A-Dome and the Aioi bridge.
Exactly!
I remember a quote that was from Hirohito I heard in World War II in Colour that stuck with me "for the first time the world has seen the use of cruel bombs" and that was from a man who ordered young men to Kamikaze. Such a tragic part of history. So grounding to see distances and stuff, adds perspective I feel
McTaminus - Hirohito never "ordered" the Kamikazi so stop the crap - unlike the self sacrificing pilots over the last 70 yrs your honoured gutless perventers of justice managed to kill 8 million civilians in 50 countries while enjoying the relative safety of high altitude and ultra high tech support and stealth - sick
majorgeeek we got a anti American over here
Fucking twat
@@majorrgeek Ever hear of Unit 731? The Imperial Japanese Army were absolutely disgusting.
@@2TheOneGamer4 - I certainly do know about unit 731 in fact the Unit 731 scientists were given reprieves and shelter in the USA while Hirohito was even allowed to go free and visit in USA - heck he even got to meet Mickey ,Mouse at Disneyland which is more than I ever got - why were no IJA taken prisoner by USA but were all allowed to return safely back to Japan under protection of the USA military?? - Russians took over 300,000 IJA prisoners back to Siberia good for the Russians while we took none - hope that helps
@@majorrgeek Yes, I certainly know about that as well. They were given shelter in exchange for the test results done at Unit 731. It's fucked up. But I'm not American. I don't believe that the Americans were or are innocent by any means. My point was simply that the Imperial Japanese Army were disgusting and I hope you can acknowledge that. Actually, I don't really care if you do or not.
For maximum effect, the bomb was detonated at about 1900 feet ASL, as opposed to a ground or near ground level detonation. For an incredible description of the blast effects, I refer you The Atomic Bazaar: Dispatches from the underground World of Nuclear Trafficking by William Langewisesche. In addition, the author discusses in great detail why transporting nuclear materials is so difficult, especially "terrorists." Great video, thanks.
It took many lives but saved many any invasion of Japan would have been catastrophic loss of life.
There was no real reason to invade. The United States could've blockaded them and kept on bombing them forever.
The Atomic Bomb did save millions of Japanese lives though. It they hadn't surrendered, there would've been mass-starvation because winter was coming on and there hadn't have been much in the way of farming that year.
When they surrendered, the United States brought in dozens, or maybe hundreds of ships of supplies to prevent starvation.
@@EtzEchad no, their military was still substantial and would have destroyed any attempts at a US blockade, meanwhile they still had the ability to beat American forces in Alaska if they wanted to, invasion was the only alternative to cut the head of the dying but still lethal snake
Kevin Collver
They had no navy and they had no air force. All they had was some coastal freighters.
Their army was still significant, but they couldn’t use it unless America invaded.
Meanwhile, their civilian population was literally starving.
Thank you so much for this, I love learning about history! Especially since you are using maps, love the videos. :)
The Hypocenter is not above that building, but east by about 150 meters.
Robert Hale thank you for that information!
I have a photo of the hypocenter markers taken last month from Hiroshima and Nagasaki.
Robert Hale - if you take Hiroshima bomb blast the military factories most of them on the outskirts of Hiroshima were not the target and nothing of any military significance was targeted since the bomb detonated over the Shimsu hospital right in the middle of 3/5 of total Hiroshima civilian population which equates to 200,000 civilians packed into the 4 square miles affected by the blast radius of about 1 mile guess this is why the bombing committee chose to bomb a city with high density population to maximise the number of deaths which is quite different to the battlefield scenario where you find soldiers scatted about over a broad area in a constant dynamic state of motion and this would limit the number of casualties especially with a crude low yield 20 kt weapon - I believe this is the reason why Truman chose to bypass the defenders dugin at Kyushu and bomb civilians because they were an easy target just like sitting ducks and would produce more deaths than hitting Kyushu - the real irony here is while Truman was killing Japan's civilians the Storming Russians were getting on with the real war hand to hand combat with IJA - that gave the Japanese an even bigger scare than the a bombs - even Truman was scared the Russians might land on Japan months before the USA - just think for a minute of the kind of headlines that would have sent across the world if they had - the real key to Japan's "early" surrender was the Russian decision to invade Japan - I am of the firm opinion that had the Russians decided to remain neutral Japan would never had surrendered when it did
You are correct. There is a darker reason though why Hiroshima and Nagasaki were bombed with the atom bomb. Look up the March 1945 Tokyo fire bombings (my wife's relatives and parents lived through that), look up the fire bombings in Dresden and other places in Germany and Japan. These two countries and their people were "dehumanized" to justify the murder of civillians on a massive scale. Look up the meaning of the phrase "burnt offering" from biblical times. Put two and two together. Then you will realize that the true evil sat with the "winners" of WWII.
Interestingly enough, the hypocenter is only marked by a small plaque at the side of a small street and is almost unnoticeable, whilst the atomic dome building and peace park attracts a lot of visitors.
Brilliant! At last I now understand why the Enola Gay was 11 miles away from the 41 second drop, ( I figured no aircraft could get that far away in that time.) Your research explains all; very well done. Tip: the book 'Ruin From the Air' by Gordon Thomas and Max Morgan Witts, 1977, is a detailed account of the mission.
This is a really good idea for a channel! I don't know how many late nights I've spent on wikipedia and google earth. I see I'm not alone. liked! Subscribed! best of luck with it!
I Was privileged to meet and come to know Camera operator Carl Contardo from these missions and after all the years that had passed it was still a vivid memory and often brought him to a distant introspection on what he took part in. As a former combat pilot in Viet Nam I can understand the thoughts but not the scope of those missions, RIP Carl, you earned it!
I have never read more nit picky pointless arguments about a video in my life...
Oh me as well , everyone becomes experts in comments
YEEESSSS! Thank u!
Peter Griffin it’s not pointless arguments hes just Informing people based on his findings
Ok Peter Griffin
This is my new favorite channel
Thank you for this video. It’s very interesting. I flew this same round-trip route in my Flight Simulator 2004 and Flight Simulator X in real time with an added software B-29. It took many hours, but at least I had an idea of what kind of flight those B-29 crews experienced, without the flak and fighters of course! 🇺🇸👍
Fascinating. Thanks for doing this work.
Millions of American lives were saved..We didn't have to invade the home Island.
David Gray - your comment on terror bombing is total nonsense both the leaders of Japan surrendered due to the Russian August Storm invasion of Japan had nothing to do with terror bombing - to date no country has ever surrendered due to terror bombing - get an education
@@majorrgeek ah still spreading that revisionist bullshit
@@MichaelCasey1988 - you are the one spreading the crap not me - get it right
@@majorrgeek
You're a silly nigga.
Anything it takes to hate America, eh?
not only at least a million military men but the whole of the Japanese population since the whole population was preparing for the invasion and with how Okinawa, Saipan, Guam invasions the Allies would know they would have to fight the civilians as well as the Japanese military on the island of Japan
Thanks for putting this video out on YT. History books in schools don’t do much of a service when it comes to the details of the little boy and fat man drops. Just subbed to your channel
My time in school, in the 60's and 70's, they never spoke in detail about any wars post-Civil War. They also failed to mention the "White Supremacist" doctrine over specifically the black race, that the Confederacy was fighting to establish. Just slavery, in general, but not the Supremacy part... But then again, this was Texas.
4:3 in 2018... okay... feels like this video was shot in 2008
Really shows the story better with this sort of information, thanks!!!
Interesting video, but there's a tiny error. The target was indeed Aioi Bridge, but the suposed explosion point was not directly above the so-called Atomic Dome (then the Hiroshima Prefectural Industrial Promotion Hall), but more to the south-east, above the Shima Hospital. I've been in Hiroshima. And in Shima Clinic (as is called now). So the actual distance from the intended target was about 900 feet. But it's pretty damn close, anyway.
en.wikipedia.org/wiki/Shima_Hospital
carbo73 who cares? just watch the video lmao
@@matthewj1997 Well I do care lol
Otherwise the atomic dome would have been crushed by the blast, according to a book named "last train from Hiroshima", aside from the the atomic dome, only a concrete-built hospital and the base of Hiroshima castle still stands within the 5 or 7 km blast area
So interesting and researched. Apologies for the nit-picking: The winds affect everything in navigation, so the aircraft headings compensate for wind drift. If winds were taken into account, the tracks would be spot on. If not, then the deviation would be proportional to the wind speeds and direction, which at 31,000ft can be 100+mph. And, I was under the impression wind resistance creates a terminal velocity when gravity alone is involved. But if the bomb really did go 900+mph, that's amazing. Thanks for your videos.
Wasn't Hiroshima the alternate after the original target was covered by cloud?
Tomislav B really?
No, that was Nagasaki
Tomislav B o, kokura was the primary target for the second atomic mission, and Nagasaki was the secondary target. Kokura was obscured by smoke or clouds forcing Bocks Car to divert to its secondary target which was Nagasaki. They could have dropped using radar but the crews had been ordered to drop visually or face a court martial.
The primary target was exactly Hiroshima, not Kokura neither Nagasaki, so that since 4 months before the bomb dropping, was decided that it shouldn't have suffered any bombing. Indeed it was a never bombarded city in Japan before august 6th. They decided so for two reasons: 1) to find it integrates before the bombing in order to measure exactly the degree of the destruction caused from the bomb; 2) Give the impression that Hiroshima wasn't a target of interest for the US armed forces
After my Maternal Grandfather was KIA in W2, my Grandmother twenty some years later, remarried a Retired Navy Officer who was a Bombardier in the Pacific War. We didn't know this until he was on his death bed in 1993.
He never wanted the Grandchildren to know the horrors of the war.
He never spoke of it in all those years.
What a good man. What a really good man.
My Dad's Father was US Army-Air Corps, Pacific War as well. Another great man. These men did what they had to do, came home and raised large families.
The campaign medals and awards of heroism and bravery we discovered after these men departed up for somewhere far better.
Merry Christmas to all.
Fascinating! Especially the fact that the bomb was travelling faster than the speed of sound which is why the noice didn’t occur until after the bomb hit. Do you know what the radius of the blast was? I’m sure it’s out there somewhere but it would be good to see that on Google Earth.
Sharon Collard hello! The bomb exploded about 2,000 feet above the ground, directly above the atomic dome, and everything within a one mile diameter was totally destroyed except for a few earthquake proof concrete buildings. Everything beyond the one mile was burned down or on fire for about another two miles beyond the one mile diameter of complete destruction. Roughly another two miles beyond that was extreme heat causing second and third degree burns, so they say the whole blast radius was about five miles. There was also large amounts of nuclear contamination left behind.
Forrest Haggerty Hey! Wow! Thanks for sharing that info. I’m such a geek! but this stuff is so interesting to me.
Sharon Collard I’m a geek too. Geeks are cool!:)))))))
Forrest Haggerty Yes we are! Geeks rock!! 😃😃😃
Sharon Collard and Geeks Rule!:))))
Did you account for the terminal velocity of the bomb? 900+ mph seems a little fast for a falling object, on earth, even streamlined. Maybe in a vacuum? Could be correct but I find the fastest it can fall when factoring in air resistance is only about 200mpg max. Not sure about that though.
My grandfather had belong to Oosu Anti Aircraft Battery in Etajima when he witnessed the city of Hiroshima was disappear through a rangefinder.
Hiroki Ogawa thats scary. That must have looked like magic in 1945.
FiestyPapa thank you lmao
Excellent video. Thank you for the time and effort needed to produce it.
Very interesting video. My one small nit-pick is that when you plotted the aircraft tracks you did not take into account of the circular track of the turn itself, as aircraft do not turn to a new heading instantly. Assuming a speed of 270mph and a bank angle of 60 degrees (equivalent to a 2g turn) for the tight turn away from the blast it would have a turning radius of about half a mile and took about 20seconds to complete the turn. You can plug in various values of speed/bank angle to see how it affects the turn rate and radius of turn on this website: www.csgnetwork.com/aircraftturninfocalc.html
And then how fast does the shock wave travel. 20 seconds to turn, 23 second before impact they are on new heading and they got that far away?
The description from the pilots of what they saw is seriously haunting...
Have been trying to research the track Doolittle took to bomb Tokyo from the Hornet without success, anyone know a site?
Very clear explanation and mapping. All the best wishes 💗
Great video. Only wish it had the circumference of the blast, or it's overall impact.
Little Boy exploded at a height of 1,968 ± 50 feet (600 ± 15 m). You can read about the effects here:
en.wikipedia.org/wiki/Little_Boy#Bombing_of_Hiroshima
Robin - the atom bomb exploded over the Shimsu hospital in the middle of the civilian populated 4 square mile area of Hiroshima almost as per plan with a blast radius of about 1 mile contained 3/5 of the Hiroshima civilian population - the bombing scientists did calculations to maximize the blast radius on the civilian population by optimizing the aerial blast height (altitude) in order to kill as many Hiroshima civilians as possible with the bomb - allowing the bomb to detonate any higher or lower would have reduced the effective blast radius of the bomb on the city - 120,000 dead Hiroshima civilians men women children even babies in nappies was the result - a war crime by any standards
@@majorrgeek A bombing that saved millions of Japanese and Allied lives.
@@acoow - really? - Both the Emperor and Prime Minister of Japan categorically stated the surrender was motivated by the Russian attack on Japan and even our very own General LeMay who was in charge of the bombings said "The atomic bomb had nothing to do with the end of the war at all." I'd rather believe these expert witnesses than you anyday
@@majorrgeek The calculations were done to have the maximum effect on all people whether they were military or civilian. (and factories/structures too of course). If they wanted to kill only civilians then they would have put a different plan in effect.
Fantastic channel, thanks Forrest
Good thing they missed by 440 feet or someone might have been hurt
It was on purpose. It wasn't an impact bomb the shockwave would have done more damage than if it exploded on the ground so they went with that
@@justinlee4465 Missing the intended target (the bridge) was not deliberate.
Justin Lee thats false. They detonated it 1800 feets above the ground so it would make more damage.
@@yologergi9905 I gather English is not your first language.
I had an old neighbor who was an engineer on Tinian during World War II. While he didn't actually fight in the war, he did get a chance to see, take a photo with, and work on the Enola Gay plane. He gave me a copy of that photo. He passed away in 2014; we are losing veterans too fast.
I came because I only paid attention to “gay atomic bomb” and I know you came here because of that
nope
Don Schmidt damn mission failed
Nice video man enjoyed this very much. Unfortunately the history channel is all about chasing Sasquatch now and refuses to create informative content like this.
and that’s how anime was created
Brilliant summary! Devastating but justified in terms of saving allied lived
The weight of the bomb makes no difference in falling speed. A marble would have hit the ground at the same time.
Karl Olsen wind resistance would slow the marble down because it’s so light. Wind resistance could not slow a 10,000lbs bomb as easily as it could a marble.
Forrest Haggerty but wind resistance factors in surface area as well. The surface area of a marble is negligible in comparison to “da bomb”
Karl Olsen the more mass you have the more acceleration you have. The mass of the marble will reach a point of equilibrium with the wind resistance and stop accelerating where as the bomb’s mass will continue to accelerate much longer before it reaches an equilibrium.
The acceleration due to gravity will be the same for any two objects, but their terminal velocities will be different if their ballistic coefficients are different.
Mhm mass has no bearing on acceleration, but it does have a bearing on velocity. I assume 'da bomb' would have a seriously high terminal velocity, due to the insane density of uranium.
This year will be the 75th anniversary of that event more specifically August 6th
No one:
Me at 3 am:
I’m just vibing watching weird asf videos and all of a sudden...
RUclips recommendation: “Ya wanna know how they bombed a fuckton in Hiroshima?”
Necessary Evil.
It definitely is evil. But to someone who suffered from the Japanese, it might be justice for them. Now if someone could stop the cycle of hate. lol
@@lazygamer7469 Thank you. For posting a comment that has some common sense
Knew an older gentlemen in the army Corp of engineers sent in to help with the cleanup even after a week he said there were steel I beams laying under the rubble still glowing red from the heat. Glass bottles fused to the concrete sidewalks, Terra-cotta tiles that were warped and melted, he said you could see where people had been standing when it went off because of the atomic shadowing and the fact that there would be little blobs of coins laying on the ground fused together, plates in a nearby restaurant had melted together. The heat was insane. He said about seeing people that looked like scorched logs, not humans, ones far enough away to not be vaporized but killed instantly and turned to carbon.
RUclips:
2018: hiroshima isn't important
2020: HIROSHIMA IS THE MOST IMPORTANT ATOMIC BOMBED CITY, SO THIS MUST BE IN YOUR RECOMMENDATIONS
Thanks Forrest, very interesting and the detail. Wow love your work
Mac Hernandez thank you for your kind words and I’m happy you enjoyed it!
He sounds like Clint Eastwood
I was thinking Jordan Peterson
Thanks for this video! Well done.
didnt detonate in the air? u know not hiting the ground
wait i did comment this... i was lazy i gues sry XD:edit: i ment u did...and so on distlexia can be anyoing sometimes
I think you are beyond dyslexia. You sir, cannot type for shit.
Detonated at about 1900 feet. From a barometric pressure fuse. The height was chosen to maximize the mach stem effect of primary shock wave and reflected shockwave converging which produces a blast over pressure of enormous strength. It will wipe a building from its foundation. The burst height of the bomb could also be gauged from the flash burn on objects and measuring its angle then triangulating that from a number of varied positions. The converging lines will give you the detonation point.
Originally the aiming point was the T-shaped Aioi bridge, and yeas, "Enola Gay" bombardier Tom Ferebee missed 300 feet, but the A-bomb detonated at the altitude 1890 feet, but a little further, above the Dr. Shima clinic. Not above the former Promotional Industrial Hall now called the A-Dome. And one moment. After the explosion all planes No.82, 89 and 91 made three circles around the stricken city, that's suggested the flight around the mushroom cloud on the safe distance, that was about 1 mile, as Col. Tibbets said in his memoirs. Nevertheless, this is the great stuff! Thank you!
hahaha
gay
hahaah
Thank you Beavis! LOL
Huh-huh
Fucking child
Gays make fun of straight people all the time.....Scientist
@@Vanderkoph gay haha gay
I flew over Tinian a few years ago, all the runways are still there. In fact it's a tiny island covered in runways.
I was able to meet Thomas Ferebee a few years before he passed away. I was living in Mocksville NC at the time and I met him at a Veterans Day celebration. Very nice talking and friendly gentleman.
I was good friends with Richard Nelson and I spent a lot of time with Theodore “Dutch” Van Kirk. I also spent about 4 hours on the phone with Paul Tibet’s.
TarHeel - war criminals are never gentlemen or nice people - this man was responsible for killing 120,000 innocent civilians, woman, children even babies in nappies - how disgusting - he should have been hung
Quick correction. The bombs weight is a non factor. The air resistance against it may be less but the weight did not change the acceleration towards the ground. Perhaps slightly for air resistance but really not much.
*pushes up glasses*
Actually, the bomb didn't detonate directly over the Atomic Bomb dome. It detonated over Shima Medical Clinic, about 400 feet to the southeast of the Dome.
Actually, weight is irrelevant. Acceleration due to gravity is constant on all objects. A brick dropped at the same time would’ve reached the same approximate speed of the bomb at the same time.
No, you’re wrong.
Dmitri Konnov prove me wrong, comrade