Oppenheimer Atomic bomb How it Works | First Nuclear Bomb
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- Опубликовано: 20 июл 2023
- Mysterious Strange Things
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Little Boy was one of the first Nuclear weapons tested on Mankind.
While the dangers and the Engineering behind it were even regretted by the scientist Oppenheimer.
Julius Robert Oppenheimer was born on April 22, 1904.
He worked on the Manhattan Project and was often coined as the father of the Atomic Bomb.
But the interesting part was later in his life, he fought to eliminate the production and development of nuclear weapons, and died at the age of 62 in 1967.
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There wasn't machine guns. They were too heavy.
@@Thomas-41234 I saw in pearl harbour they put broom stick. Is it true
Manhattan is misspelled in the beginning. Other than that, cool video ☺️
Request : active protective system, active protective armor
I subscribe because of tank animation and now couldn't regret. 🥰
I taught physics for over 4 decades. Sure wish I had this type of animation. Well done.
We're Just amateur and Highly obliged to have you here in our small Channel
When I watch educational videos on here, especially animated stuff, I always wish it was available when I was in school still. There seems to be an endless supply of excellent videos that apply to any and all subjects and levels of each. I hope teachers and students are taking advantage of what's available to them whenever possible.
I'm an '82 and I understand your reasoning completely.
The animation makes it even more interesting, and gives a better scope.
Physics is very interesting.
Once you start reading you don't want to stop
I agree 100%. Growing up our teachers read from a book but there were a few good teachers that used better visual aids to help the students comprehend the material.
Now that I am 42 I am teaching myself so much that I "just didn't get" back in school. If social media was not destroying our kids and well... our minds too, we could really advance as a society.
Thank you for your service teaching. 🤝
The 3 green safety plugs were removed and replaced with red arming plugs once over the target area. This armed the weapon. The green plugs blocked the electrical path to the arming circuit, timer, barometric and radar triggers. This was a necessary safety feature as there were fears of possible detonation, either on take off or in flight. The plugs weren't removed on deployment. Great video though of a fascinating part of history.
300 m/s second is a fairly low speed for shooting the uranium rings into the uranium plug (wonder why not shoot the smaller plug into the rings?!). The faster they are shot together, the more complete the fission reaction thus more power yield. I read that only less than 5 percent of the total uranium actually went fissile in Little Boy, the rest was wasted. Fat Man had extremely high speed explosive lenses in the 8K m/second range for the fastest possible implosion.
@@billant2 The target area was surrounded by a neutron reflector. The firing of the bomb enclosed the uranium structure entirely in a reflective cylinder, with the cap being what pushed the hollow rings into the cylinder. Had the Hollow rings been placed there they would've been in chain reaction or dangerously close to such. As such the hollow section had to be what was added later
Are you an Art Bell fan,he loved his Ham. It's a dieing art. Most old Ham's could almost build the radio from scratch.
The detonation process of these are overwhelming. The amount of time and brains it took to create is fascinating. How they used radio waves to read barometric pressure, and then activates the firing switch. And how it sets off a charge, it’s so brilliant.
Great job, guys! One of the most informative videos about the original bombs that I’ve ever seen. 👍🏻
This DIY project looks dope asf. Can't wait to try it at home
The moral weight of this invention is immense. I just watched Oppenheimer and wanted to understand more about the invention itself. Thank you for providing clarity on how it works and why it was devastating.
what moral weight? what morals? this bomb killed so many people, what morals are you talking about?
What did you think of the movie?
@@TheStealthDawg it’s excellent
@@TheStealthDawg the movie was masterful.
Got enough inspiration, now make one !
This was not only informative but produced and animated in such a way that it was very easy to understand and absorb! Congratulations. A brilliant video!
correct! im using this in my powerpoint in class
This was fantastic! Thank you for simplifying the experience.
First video from you
I have seen, and im hooked! Great balanced explanations using the perfect timing and volume of technical insights that is wrapped up in fabulous visual effects which mirror that wider or closer perspective as needed.
The B-29s used on these mission had their upper and lower gun turrets removed to save weight and improve drag. The defensive guns we're needed at that point in the war since the Japanese didn't go after only three aircraft which they thought were recon or weather planes.
Thanks John for your great Feedback.
We love these type of Comments
.
The “Silverplate” B-29’s also had the aft bomb bay removed and the forward bomb bay length increased (to handle the longer atomic bombs (the very first had the front and rear bomb bays merged)).
The forward bomb bay was fitted with Lancaster “Grand Slam” bomb shackles (and dropped “Grand Slams” on practice missions over Japan (along with “Pumpkins” (impact fused non nuclear versions of the Fat Man bomb))).
The orange painted pumpkins acted as both practice weapons, blast bombs and security cover for the visually identical Fat Man bombs (yes, bombs plural - 15 were built before they were superseded by the Mk4 replacements in late 1946 (11 by the end of November 1945)).
@@allangibson8494 The only B29 built with a single set of bomb bay doors was made to do aerodynamic development of the "Thin Man" bomb casing. Thin Man was the original gun-type bomb designed for use with plutonium. The Thin Man bomb was 17 feet long which is why the modified B29 was needed. When the first reactor made plutonium became available it had Pu240 in it and a gun design would have caused a fizzle (pre-detonation). When the plutonium bomb design was changed to implosion, the single bomb door was not needed as both Little Boy and Fat Man would fit into the front bomb bay of a B29. The rear bomb bay was then used for carrying additional fuel extending the range of the airplane. None of the Silver Plate bombers used the single-door configuration, they had two sets of bomb bay doors. You can reference both “B29: The Superfortress,” by Carl Berger, and “Atom Bombs: The Top Secret Inside Story of Little Boy and Fat Man,” by John Coster-Mullen for this information.
@@buckhorncortez The forward bomb bay on all the Silverplate B-29’s was lengthened and reinforced. The bombing radar was moved slightly aft as a result. You need two side by side to see the difference between the standard and silverplate versions.
The aft bomb bay was deleted and, as you noted, used for additional fuel tankage leaving only the forward bomb doors operational.
Only the forward bomb bay could be used for bombs after modifications and the aft bomb bay fuel tank had to be carefully managed to maintain weight and balance.
I think this format for explaining technically difficult concepts is wonderful and should be used far more often!
It is. It can be overwhelming tho. The amount of physics and chemistry involved in this is mind blowing.
Best animated video on how atomic bomb works , really appreciate your work guys
Well done! A simple and clear explanation is accompanied by sharp, easy-to-understand pictures and animations.
A truly successful and very professional presentation.
Having read some of the comments below, I agree and praise this work even more strongly.
When I was having trouble with 3D Calculus, I saw some (primitive) videos that worked.
[This was back in the 70s.]
I wish I had had videos this clear and concise together with the dialogue. I probably would have gotten higher grades in Advanced Calculus.
It's crazy we have the means to watch the basic mechanism of an atomic bomb. This information is classified maybe 90 or more years ago. Always beautiful presentation.
Yes agreed 👍
The Magnetron (type of radar that enabled the UK to survive the Blitz) was also a top-secret device during decades. Nowadays it's present in every microwave oven.
How the implosion device works still sort of classified. Just like how they exactly make and H bomb work. They will let you know the basics just not how to make one really work.
Yea I don't think they're too worried tbh. This technology is way outdated and even if you knew the exact firing mechanism (which this isn't the complete sequence), you'd still have to get your hands on highly enriched Uranium (HEU) and Plutonium which is not going to happen
Still hard to build
Duder! You've explained this so well.
Thank you for editing and sharing all this information with us.
Superb job!! 🙏❤️
I just subscribed. 🙂
Awesome animation! Super easy to understand + very helpful!
This is so detailed thank you. Always wondered how nuclear works like the atom part
superfortess, kiluminers, kilomeers, fusaledge. I've never heard somebody pronounce so many large words correctly and so many others so terribly. Great video.
It got you and me to comment, which is the whole point of allowing mispronounced words in these videos.
User engament=more views=$$$
Awesome Job guys! It was animated really great and easy to understand. Subscribed! 👌
Thanks for the animation. Well done and taught me the differences between the two bombs. Thank you!
Great animation. Could you do an animation on how a ww1 or ww2 torpedo works? I know it has to stay plugged in and cooled/heated and whatnot, but it’s very complicated.
Some one already did that.
Even Better than us
@@Aitelly vbbsmyt?
@@Aitelly
Funny, never stopped you before.
It's the whatnot that makes it complicated. If only we could be rid of that.
Amazing animation detail. I've subscribed. Thanks for explaining how the Atomic Bomb works. Great channel you have. 👍
You got my subscription! This info video is the best I've ever seen hands down. Great job!
AiTelly, what great animations ! Damn ! Loved my first video here, looking forward to more. Great work ❤️!
Thanks! we do this just for the love of engineering Vdeos
absolutely awesome animations! i always love seeing your videos.
Thanks for your hard work on the superb simulation. Very well executed and extremely informative.
Very well explained. I never heard how Little Boy was designed.
I am so busy in my work. But i haven't watched most of your vids and i will do it. Everyone should watch these 10-15 min video to get something informative instead of watching some songs and gaming videos.
Thanks for your business too
Good point. Now back to my prank videos and cute animal videos...
Thank you, I kind of know the physics behind this but I learned a lot more than what I had thought. A lot more steps than I realized. Very educational, comprehensive and extremely well done.
Thanks for sharing your thoughts on it.
This is the best explanation I've seen with animation on the bomb. No one else explained the job of the Crical Mass like this.
Thank you very much!!!
Thanks
Outstanding video production. Your graphics are educational, easy to follow and great visual aids helping understanding. Your narration is superb. Really well done!
It is important to note, the Little Boy Bomb was never tested like the Fat Man Bomb which used Plutonium 239, whereas Little Boy used Uranium 235. Oppenheimer and his team were so confident in the Little Boy design it was never tested and it really wasn't proven until it was dropped on Hiroshima.
Made in the USA
Tested in Japan
The acknowledged difficulty with the Fat Man was the timing and relative strengths of all the charges for the implosion. For it to work correctly - ie not to end up with the core being spat out - the timing and strength of each charge had to be perfect. The development of all this consumed a lot of time, effort, and expenditure and there were doubts until the very end if it would work. The Trinity test proved that it did. The gun type was much simpler in concept and to manufacture.
All the weapons grade uranium made up to that point was used in the Little Boy. There wasn’t enough to make another bomb until later.
With respect little boy was exponentially less efficient. Also keep in mind that U-238 or plutonium does not naturally occur on earth or anywhere. It has to be made by enriching U-235 to an atomic weight of U-238. So in essence the natural progression to initiate a larger output of energy is implosion. Lucky for the physicists at los alamos someone was working on changing the the shockwaves of conventional explosives from concave to convex and thus changing the process of how they split the atom and more efficiently changed history.
A machined hollow sphere of approximately ten pounds of plutonium was compressed by hundreds of pounds of composition b which is now c-4/symtex. And boom. You get a little less than 200k lbs of tnt. What is really interesting is the incorporation of tritium and other elements and stryofoam that Teller figured out would give us the fusion bomb. Which I think Oppenheimer and the physicists at Los Alamos already knew about given the outcome of their math.
@@khb6686 A bit of clarification, uranium does occur in nature but most of it is U238 which can’t sustain a chain reaction. So factories at Oak Ridge worked to separate U235 from U238 leaving enriched uranium and depleted uranium.
incredible video, as always!
Very intuitive. Nicely done animation. The world needs you guys!
👍
Left out the in flight arming procedures- The loading of gun propellant & removal of beryllium neutron absorber, undoing the two precautions used for "safeing" the weapon in case of a crash/fire during takeoff. After that, weapon had no other safeties...
I'm new to the channel and gonna say I'm impressed by your works. 🎉❤
very informative and interesting video content... and thanks for including the metric conversion, very helpful to understand how the atomic bomb works....
@mheradiranto Thanks
the metric information helpful to the 96% of the world's population that use the metric system. the other 4% of the world, that is the U.S., sadly still requires the old feet, pound mile system.
Outstanding. Well done in an easily understandable format accompanied by great graphics.
Bravo on your animation, simplification, and narration! Look forward to a comparable video on nuclear fusion type weapons.
You never miss a wave of hype... cheers mate 🥂
Cheers Sandman.
By the gods, aside from the worst that happened, that level of engineering was out of the time, amazing what a human brain can do. Great video.
@TheMaverickjc29 Thanks we love you guys!
It makes you wonder was WW2 really not that long ago or was this just really advanced for its time? The German V2 ballistic missile was another engineering marvel of that era.
@@waverunner7063 Both.
Failure was not an option for them. They had to get it right the first time.
@@waverunner7063 Also people forget that we didn't know how to make jet aircraft at the time, so thankfully the war ended when it did.
Somebody get this man a show or something. Great video and was kinda bummed it was so short lol. Had my attention the whole time
Just mind blowing video!! great work guys!! Wishing you best of luck❤️
the fact that you mention the animators work at the end (which is almost always overlooked) made me really subscribe, thanks for the lesson. I hope to the "fat man" explanation in the future.
Thnaks for understanding the hard work of the Animators and the programmers.
We are really Humble and Hardworking guys just tying to understand how stuff works.
again you did an amazing job, waiting for your next video
Thank you! Cheers!
Thanks for making these. VERY interesting. More please!
Thanks for video and animations. I always wondered how they work and how scientists even came up with this stuff
This channel is getting so freaken good! Well done to all involved! Such good information and explained so well!
Awesome 👍 thanks
These videos you are making are amazing. 💯
You are amazing 👍🙏
Nicely done. the animation was first class. I always understood that it was the plug that was "fired" into the center of the stationary rings (sort of the opposite of what is illustrated here).
Google: building an atomic bomb is highly illegal.
Bing: Here is a step by step guide to building an atomic bomb
Don't worry, this design will not work, it's BS
B29 must've been staggeringly advanced for it's day. Such a cool plane.
It's all American ingenuity at it's finest. Truly remarkable - the planes, the bombs, just astounding.
the b-29 and the bomb were the two most expensive weapon systems of the war@@Kimber123 both stolen by the russians
Thank you for creating such wonderful educational animations. It is hard to find good quality like this! +1 sub from me, please keep up the great work guys :)
So informative, amazing animations - leading edge presentation ... keep up the great work - yes, I subscribed.
Great video-Well done, and narrated with excellence. I will be a new subscriber startimg today
The Thin Man shells were unstable in airdrop tests. Many shells for the three designs were developed and the two used designs worked best. Thin Man was a gun type weapon that is rarely mentioned.
Thin Man was supposed to use plutonium but plutonium is too unstable and the nuclear chain reaction would have started prematurely, destroying the weapon without generating adequate yield, so they scrapped it in favor of the implosion design for plutonium and restricted the gun type design to use uranium only.
Thin Man was never built
@@johnsimpson8043 The Thin man bomb cases were built, the test models dripped in a slightly nose down flat spin. They wouldn't fly... Interestingly both of the airdropped Fat Man weapons missed their targets by a mile-and-a-half. Both bombs, the Nagisaki bomb and the test Able bomb where dropped by bombsights set up by bombardier Kermit Beehan. After the Able miss the bomb case was modified to the Mk.4, the California parachute tail assembly was modified, and a drogue chute added. The Mk.4, the successor to Fat Man was accurized to under 800 yds.
*dropped*
7:51 - Just FYI - 0.36 sq km is not a diameter.... it's a measurement of area.
Narrator also says “Superfortess” and not “Superfortress” while the text says “Superfortess” so I don’t think they spent a lot of time on editing.
Wow great video and great animations! This video helped a lot of understanding how it works. The Oppenheimer movie didn’t really tell you how exactly the bomb worked.
Or watch the plenty of other videos on it. Long story short Britain knew of the concentration camps, yet denied their existence when the Soviets found the first one at Dachau, also it was the secret network that informed the Soviets of when and where the Germans and Axis were planning an offensive. Was key in the battle of Kursk. Only successful Axis offensive was when I think Heinz Guderian made a decision without letting Berlin know.
Please re-check your figures regarding the velocity of the uranium fired in the gun barrel. I have read in several sources that it was 1000 m/s, not 300 m/s.
Y’all are awesome and extremely talented in being able to take something real and almost impossible to explain, and recreate it using blender and not including or excluding anything that would cause confusion. Anyone from an expert to a layperson can gain a better understanding from this video. Y’all should do storm recreation or accident recreation to provide a visual demonstration for insurance claim litigation.
Your Awesome 👍
We're just amateur
The Belgian Air Force refused to accept fifth-generation F-35A fighters.Just think about it, experts, including those who participated in the creation of this aircraft, counted .... 800 defects in the design, and they have not yet been eliminated. 800, not 8, not even 80, but as many as 800!!! Bad plane!
Amazing stuff! Glad I watched this before the movie.
😂🙏👍 Thanks 🙏👍
Nice video. Crazy that it popped up in my recommended videos right now. I was just thinking about the Atomic Bomb and wondering how it worked. Appreciate the content. My only criticism is that you should work on your pronunciation of several of the words you used in the video. Other than that it was great. The animation was top notch 🤌🏼
That's some extremely good animation as a learning tool. How many man hours went into the animation for this? Be worth doing a 'making of' video as well for behind the scenes.
Great animation! It's amazing to me that they never tested this type of bomb because they didn't have enough enriched Uranium. They just presumed it would work. The trinity test, arguably the first nuclear bomb, used a plutonium/fat man type bomb. The first nuclear reactor was made several years earlier, and a few more were made to produce the plutonium. These reactors heated the Columbia river without producing electricity. It's hard to make a nuclear bomb that doesn't fizzle, blowing itself apart before the chain reaction has a chance to do much damage.
Thanks for your insights.
We love you guys.
Great Community here
They had way more assurances that the gun type weapon was going to work.
“Real men test in production”
- Stockton Rush
Ya, its amazing how BOTH of the bombs worked the first time and that NASA got men to the moon and back the first time too. I guess neccssity really is the mother of invention. Too bad it takes wars to make mankind do such amazing things. I wish as a species we were more proactive to do great things.
What reactor heated the Colorado River? There were no reactors anywhere near the Colorado River in 1944 or 1945. The first operational reactor built was CP-1 in Chicago - it had no cooling. The second reactor built was X-1 at Oakridge, TN and used air cooling. The reactors for plutonium production were water cooled, located at Hanford, WA and use the Columbia River for water cooling.
Eu já estava com saudades❤!
Really interesting and well put together info. Thankyou guys! Subbed!
Awesome 👍🏻
This is a great video, thank you for posting!
Pretty much as they taught us in nuclear weapon school. Of course some stuff changed, but gun type weapons were still in the inventory until the early 90s.
Later, for artillery rounds, the target rings were replaced by a solid piece, the projectile rings were modified so you could select the yield you wanted.
I had an exciting experience when, while building a yield, I lost grip of a target ring (they are super heavy) and it slammed onto another ring. Ooooo, what a flash and spark.
No criticality incident?!
Micro-burst. Insufficient contact area for anything to be sustained as it was the corner of one ring slamming the flat surface of another.
If the flash was blue that's criticality. And of course a bit of heat.
There were at least 2 cases of an accidental reaction in the labs after ww2. Google "tickling the dragon's tail" or something like that. They had some "cowboy" nuclear physicists who were clowning around with plutonium and graphite and accidentally set off a couple of reactions which killed and maimed several researchers.
@@sinebar It was rather spectacular, but not sustained. Just that burst, flying sparks, a bit of smoke. It was a nice wake-up call.
Great animation! You could have explained how those protons ejected during the fissile process had to hit other nuclei to create the chain reaction. One of the problems The Manhattan Project had to solve involved the reduction of free protons unable to hit further nuclei. Also, it would have been informative to mention the 77,000 generations of fission that take place in a super-critical mass, of which only the last 11 are the flash and heat of the expolsive force. Other than these minor comments, a great job!
Given that the world is so close to nuclear war at the moment, it would have been beneficial to look at the Japanese survivors and their horrific wounds and illnesses. Please remember that these bombs are minuscule compared to the fusion weapons of today!
I recall reading somewhere that scientists evaluating the explosion believe that approximately only 10% of the fissile material went critical.
Finally.... someone on RUclips explains the Little Boy accurately!!! Not hemispheres smashing in to each other, nor projectile rings being inserted _into_ target rings or any other such nonsense. Excellent animations too, really enjoyed this.
Wow they should have got you to do the videos since you know so much!
@alaskaaksala123 Well, I'm no expert but with about 120 books on the subject, I do like to think I have a rough idea about these things 😁
Amazing editing and great work keep it up!
Thanks a ton!
Your welcome I’m just being honest
Parsons didn't pull the arming plugs. Parsons inserted the cordite explosive bags into the bomb. The safing (green plugs) were pulled by Morris Jeppson and replaced with red pull-out plugs.
Performed by Captain Deak Parsons
Checklist for loading charge in the plane with special breech plug
(After all D-3 tests are completed)
1. Check that green plugs are installed.
2. Remove rear plate.
3. Insert breech wrench in breech plug.
4. Unscrew breech plug, place on rubber pad.
5. Insert charge, 4 sections, red ends to breech.
6. Insert breech plug and tighten home.
7. Connect firing line.
8. Install armor plate.
9. Install rear plate.
10. Remove and secure the catwalk and tools.
The bomb was fully armed only after the green plugs had been removed and the red plugs inserted, by Electronic Test Officer Morris Jeppson
But I read somewhere he was the one who kept them as Soveniers.
I meant he volunteered to be on the plane as it was too risky to arm it on land
@@Aitelly The entire crew was chosen by Paul Tibbets for the mission. No one "volunteered" for the mission. Read, "War's End: An Eyewitness Account of America's Last Atomic Mission," by Charles W. Sweeney. Tibbets wanted a specific crew that he had total confidence could successfully complete the mission. -
I think Parsons actually cut himself on one of the precisely-machined parts of the bomb (stabilizers maybe). He was also the only one of the Enola Gay crew to have witnessed the Trinity detonation, so he knew what they, and Hiroshima were in store for.
@@buckhorncortez okay that's great infos
@@buckhorncortez his autobiography has been disputed by members of the command who were present on the missions and the training for the missions.
you could have used radius in km as a destruction zone measurement instead of sq km, btw nice video.
Thanks for your feedback
Would be great to see more animations like this but for mechanisms of actions of medicine
I had a chance meeting with a member of the B-29 ground crew around 1990. I was at his house for a random reason, and noticed some pictures on his wall. I asked him about them, and he told me about his involvement with the A-bombs and some stories you'll never hear elsewhere. His last name was, Merry. First name, Francis(?). I think he had a twin brother, so I might be misremembering his first name.
Fantastic animation and factual breakdown of this terrifying event. Lets hope we learn from this and avoid reaching for nuclear weapons.
just needed to tip the bomb nose down. Looked weird with it falling flat.
Let's hope pacifists like yourself realize that the dropping of these two bombs actually saved MILLIONS of lives. Please get off this ridiculous soapbox and learn the facts of this horribly bloody war, which would have seen more than five million Japanese casualties had we invaded, before spouting off infantile comments.
The fact that much power and destruction can exist in such a small object is terrifying.
They have much worse now. To give you a taste, the 🇺🇸 has a ballistic missile. In the tip of each Missile there are 12 Nuclear missiles. Each containing 1.5 Megatons of plutonium. Each bomb can fly independently when launched & coordinates changed while flying. That's just one missile. Our subs (12) of them
Have 18 ports! 😳
That's 216 NUCLEAR BOMBS 💣 on one sub. That's 2592 Nuclear warheads. Placed strategically around the World 🌎. 3,000 BIG Ballistic missiles (150 Megaton) throughout the 🇺🇸. I call them Earth enders because only 100 of those are needed to end all life on Earth 🌎.
Russia has around 6,000 Nukes. 😳 Enjoy life because it can end in an instant.
E=MC². The entire universe was fused this way. Everything physical, including our own bodies, has enormous potential energy stored up.
@@Rich-yj4ub the modern consuses is now that humanity would not be extinct by global nuclear war.
Excellent and easy to understand production. I enjoyed it. Thank you.
Glad it was helpful!
1900s: Our hero!
2022: OmG ThAts OfFenSiVe HE mAdE a NuClEAR BomB
2023: Sigma 🗿🗿
Stunning animation and elaboration that made the entire event understandable like never before.
Nicely explained! My only small objection is not mentioning and explaning critical mass of U-235 :)
We tried to be as Basic as possible.
for some reason if we try to explain in detail people Like simple videos
@@MightyGimp Yea, thats why the Barbie movie made so much money, all bubblegum.
Thank you for recording and posting this valuable educational video.
Thanks for the video, so great work
Great video, but I wish he had discussed more about those polonium initiators. How does that trigger the nuclear reactions? Thank you for the internal details and explanations.
It was unnecessary I read somewhere
The polonium initiators were used to increase the amount of neutrons available for fission, helping to ensure a chain reaction.
The initiators were made of polonium-210 and beryllium-9. Polonium emits a constant stream of alpha particles. When an alpha particle strikes a beryllium atom it causes the beryllium to emit a neutron. The initiator for the two atomic bombs was called "The Urchin." It had a small pellet of beryllium in the center, surrounded by a shell of layers of polonium and beryllium. The beryllium was shielded from the polonium by either nickel or gold plating or foils. When the initiator was crushed it mixed the beryllium with the polonium causing a shower of neutrons to start the chain reaction. This is important as the fission reaction automatically stops when it reaches 1.12 times the radius of the mass when the reaction started. The more U235 atoms that fission simultaneously when the reaction begins, the larger the final yield.
@@Aitelly it was very much necessary. The gun bombs had a major weakness. Premature initiation. The chain reaction only takes about 100 ns to initiate. Once started the projectile will never reach the Polonium, thus the bomb yield will be low (dirty bomb), and Hiroshima would probably be uninhabitable today. So they made the decision lower the mass of the leading rings, save one. Thus they needed to make sure to artificially stimulate the initiation to reaction with Polonium-210. The bomb would work without the Polonium, but they built-in safeguards to make sure.
@@JackHudlerI guess everyone knows how to build a nuke now
Nice video. The B29s used for this mission were built specially for the mission. Codename Silverplate B29s had a polished metal skin and did not have any defensive guns fitted.
Thnaks! i did not know that
I thought it had the top and rear guns, but not the lowers
@@TechDove actually just the rear gunner on both missions. Bock's Car had quite a predicament due to fighters being scrambled over Kukora and they were running low on fuel. Fires from nearby Yahata saved the city due to being obstructed and orders were to do visual only bombing.
I read that they devised a cover story that Silverplate was about modifying FDR and Churchill's car for a secret tour of the US. 😂
You were right about most things except the "polished metal skin" being unique. All B-29s had "polished metal skin" and Tailgunner T/SGT George R. Caron would take exception to there not being "any defensive guns" on the Silverplate B-29 Enola Gay. But other than that.....
What a GREAT lecture/animated film!!! Brilliant and beautiful.
These are gems. Really well done fellas.
Loved your work. Please do one on new atomic weapons which are very small
Ok any suggestions
Watching this right after watching the movie.
Awesome movie, great video!
I haven't seen the movie 🍿
Will watch it this evening
@@Aitelly It's definitely worth a watch. Nolan has matured as a filmmaker.
@@rudrakshpathak5834 I always love Christopher Nolan especially the film Bat Man Begins.
@@randommiller Oppenheimer
I just want to say, thank you for providing both the imperial and metric systems.
Your welcome
Extremely insightful, thank you!
Amazing explanation 🎉
Thanks 🙏👍
Small error, it is a Superfortress not a Superfortess. I think it said correctly towards the end. Interesting note, the B-29s used were special Superfortresses called "Silver Plate" which were modified to carry the bomb.
Also, though not mentioned in the video but is a common mistake made by many, Trinity was not testing the viability of a nuclear bomb. They knew the Uranium Little Boy bomb would work and it was already 8in transit to Tinian before Trinity. Trinity was testing if the implosion plutonium device, Fat Boy, would work.
There are a number of other small errors, such as the spelling of Manhattan, and the pronunciation of fuselage and nuclei. These should be easy to correct and to repost if RUclips allows revisions.
@@InspiredByActualEvents and key-o-meters
@@BruceRhodewaltofLQ and pro-ject-al
Amazing Video, EXPLAINED Visually!
I met Commander Frederick Ashworth in July 2005 at a presentation in Los Alamos.
Got to have an interesting conversation with him after the presentation. He was 93 years old and passed away a few months later.
He armed the Nagasaki bomb.
What an amazing timing of this. ❤❤it. When movie is around
Yes we planned this 2 months ago
WOW !
That's what I call a REAL FIRST CLASS 3D VIDEO !
I never thought I would see a that clear, precise and easy to understand explanation of the the atomic bomb !
Are you going to make a video about the fat boy as well ?
Man.....
Keep up the excellent work and may God bless you always !
Thanks 🙏👍
I'm pretty sure this video was made by AI
Thanks for the simple yet detailed animation video
Fascinating. Never understood how these worked. Great video.