Operation Upshot-Knothole - Nuclear Test Film (1953)
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- Опубликовано: 28 сен 2024
- Courtesy: U.S. Department of Energy
0800015 - Operation Upshot-Knothole - 1953 - 35:45 - Color- This operation conducted at the Nevada Test Site consisted of 11 atmospheric tests. There were three airdrops, seven tower tests, and one airburst. Conducted between March 17 and June 4, 1953, this operation involved the testing of new theories, using both fission and fusion devices. A new and revolutionary method of producing deliverable thermonuclear weapons was successfully tested. Approximately 21,000 Department of Defense military and civilian personnel participated in Operation Upshot-Knothole as part of the Desert Rock V exercise.
Unfortunately, Operation Upshot-Knothole, particularly the HARRY test, drew a great deal of criticism as resultant fallout levels produced increased offsite radiation exposures.
The tests comprising the 1953 Operation Upshot-Knothole were as follows:
ANNIE, March 17, tower, weapons related, 16 kilotons (kt)
NANCY, March 24, tower, weapons related, 24 kt
RUTH, March 31, tower, weapons related, 200 tons
DIXIE, April 6, airdrop, weapons related, 11 kt
RAY, April 11, tower, weapons related, 200 tons
BADGER, April 18, tower, weapons related, 23 kt
SIMON, April 25, tower, weapons related, 43 kt
ENCORE, May 8, airdrop, weapons effects, 27 kt
HARRY, May 19, tower, weapons related, 32 kt
GRABLE, May 25, fired from 280 mm gun, airburst, weapons related, 15 kt
CLIMAX, June 4, airdrop, weapons related, 61 kt
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I watched this for the explosions, i left feeling like a scientist at los alomos.
These are excellent sources of raw data in the advancement of these weapons. Many Thanks!
Odd but having taken the Nevada Test Site tour and having walked on Frenchman Flat, it's bizarre how mellow it felt, even though I was standing max 3000 feet of where about 10 nuclear bombs exploded. Several within 1500 feet if not closer. Such a peacefully weird place.
8:10 Those old cars could take a punch.
I sat on both atomic cannons .one is at ft.sill Oklahoma. The other sits on a hill in kansas by ft.riley.
Dang, I wonder what the unsanitized version looks like.
I like how they refer to the bomb as a 'gadget'
Agreed. Or "device" like it's a mousetrap you can put in your pocket.
it was it's code name.
When the scientists first went to Los Alamos, they were required to attend a series of introductory lectures by Robert Serber on the current state of physics in relation to making a weapon. During the first lecture, Serber used the word "bomb" several times. Because there were construction personnel, working on the building they were in, Oppenheimer did not want to take the chance the workers might hear the word "bomb," and discuss what they had heard outside of the laboratory. Oppenheimer sent a person up to Serber during the lecture to tell Serber to use the word "gadget" or "device" to refer to an atomic bomb. "Gadget" became the code-word for an atomic bomb, and how they have been often referenced.
I wonder what brand of paint was on that middle house.
lead white
Wow. I didn't know that they did the "Atomic Annie" shot in the same series of tests. Hmmm...did they do the Davey Crockett, too?
No. Almost a decade later.
"Buster Jangle" and wtf else? Where do they get these names?
First name is the project, second is the device.
Wasn't this the dirtiest bomb fallout wise on the usa. And the world for that matter with the ultra fine particles.
They should have filled some of those rail tanker cars with LNG or LPG. Then, we would have had data and visuals, on how "insta-bleve" explosions interact with these atomic shots.
Think of the guy who invented the camera, the lens and the film...
Without them..
Nothing
Operation Upshot Snothole?
Drones in 1953
Try drones in 1938. The name comes from the Royal Navy “Queen Bee” and “Queen Wasp” drones.
Best name ever! Upshot knothole
Band name?
Vulgar name for vulgar bomb. Upshot DhooDhoo.
Hubieran hecho todas esas pruebas antes de lanzar las bombas en japon y tal vez no la hubieran lamzado o usado
I don't understand how hot air can speed up a shockwave. Wouldn't it propagate faster in dense cold air?
Cooler air can hold more ”stuff” in it, therefore higher density. Heavier per given volume, means force needs to get through more ”stuff” to get to the same distance. Hotter, less dense (less ”stuff” in) air is easier for force to get through.
Seems counter-intuitive with all that shit the thermal flash (popcorn effect) put in the air.
@@JasonLambek When was the last time you cracked a physics textbook?
@@ericwillis7127 I don't understand what you are saying. On a cold day, sound travels farther than on a hot day because the air is denser. Sound travels faster in water than it does in air for the same reason.
@@ericwillis7127 Is the effect you're talking about the expansion of air due to heating? And that effect adding to the shockwave?
@@ericwillis7127 Thank you for your thoughtful replies. I have tried to reply twice now with what I think is happening, and the video does not support my ideas.
I thought that the precursor was a shock wave created by the expansion of air near the ground heated below the blast. This is specifically addressed in the video, and does not appear to be the case. The overpressure does not significantly increase when there is a precursor wave either. Maybe the greatly increased blast effects on drag sensitive targets has to do with the mass of the dust entrained in the wind behind the mach stem.
I need to study the video some more.
What we're looking at here is grown men playing with their toys.
matches --> fireworks --> civilian explosives --> military ordnance --> fission nukes --> fusion nukes --> ???
@@josephastier7421 Anti-matter?
Volume is very low.
So turn it up
y tho
Good old days when the government was more transparent.
This was recorded in 1953 and declassified in 1997.
@@BlackWolf18C haha
Were they though, idiot
Glen, grow up.
This comment has been redacted.
So the shot for detonation was too high and the yield was too low to create that typical mushroom cloud shape the superheated Column Never developed
I always wondered why the Russians invented the unit of measurement of nuclear radiation when Americans invented nuclear weapons and the only reason the Russians even figured out how to make nuclear weapons is because scientist in the American nuclear program give the information needed to scientists working in the Russian nuclear program on how to build atomic bombs and then again after we created the first hydrogen bombs A.k.a. staged thermalnuclear bombs
Everyone thinks we weren't big on technology back in the 50's but we were pretty damn smart
Just think, we split the atom before we broke the sound barrier in level flight.
Were we really though? Exposing us and earth to extreme radiation
Makes you wonder what shot 1 2 6 7 8 were deleted out of film also shot 9 the voice stops... Secret stuff lol
Here are links to two websites listing all of the test-shots:
Upshot-Knothole wiki-page ( en.wikipedia.org/wiki/Operation_Upshot-Knothole )
Nuclear Weapons Archive Upshot-Knothole page ( www.nuclearweaponarchive.org/Usa/Tests/Upshotk.html )
Shot 1 - Annie (A TX-5D device initiated by an external betatron)
Shot 2 - Nancy (Test of the TX-15 Nevada Zombie device TN mockup used RACER primary, tested at full yield in Castle Nectar shot)
Shot 6 - Badger (Test of the TX-16 device TN mockup, full yield shot in operation Castle cancelled)
Shot 7 - Simon (Test of the TX-17/24 Runt-I/II TN mockup used RACER IV primary, tested full yield in Operation Castle )
Shot 8 - Encore (Effects shot, Mk-6D bomb airdrop)
As for Shot 9 that was the test of the TX-13D which used a high-efficiency Pu-239 core most efficient sub-100KT test.
4:30. Dr. John C. Clark once disabled an atomic bomb that failed to detonate. It was Shot Fox on Operation Tumbler Snapper. Since the elevator had been removed from the tower, he had to climb the ladder into the cab. He carried with him only a few simple hand tools, including a hack saw that he used to cut the wire seal he had earlier installed. He lived to tell about it. It takes courage to approach a device that a firing signal has been to, but has not exploded.
16,000 tons of TNT, referred to as a gadget?????
"Gadget" is the code word used for an atomic bomb and how they are often referenced. This was a word assigned to indicated an atomic bomb from the very first days of development at Los Alamos.
@Buckhorn Cortez: I was actually being mildly ironic! Lol
At 4:30, John C. Clark is not the John D. Clark who wrote Ignition! about rocket propellants. But I did do a doubletake.
Excellent full length vids!
I'd love to watched the unreacted film.
Operation Upshot Knothole was a maneuver I performed back in college
Did she/he enjoy it?
the poor ppl who were involved with this :( they probably all died from some bad ass cancer shit :-(
No doubts.
Clean your yard.
Tell us about the Saucers- Tell us about the Flying Saucers- the Saucers the Saucers the Saucers
I need the answer though. Why was shot 10 so unexpectedly effective? Low altitude sure, but it was the first uranium gun type since Hiroshima. Are these crude assemblies more effective than their imploding plutonium sisters?
The answer lay in the actual shape and angle of the shock wave front, when it is coming from an airburst at a low level like 500 ft with only a small yield say 25 kt or less the destructive effects are more powerful than using a larger yield detonated at a higher altitude say 200 kt airburst at 2000ft. It all comes down to the shape and angle of the wave front produced. Is that any help?
Gun type bombs are safer when fired from a cannon.
They are also massively less efficient in the use of fissile material.
"Fallout" games sarcasm etc aren't so crazy are they? ;)
Those steel case desk are worth a lot of money.
You can tell by the long periods of silence that these films were heavily sanitized of still classified design information.
I'm not too sure about that, you do need to give the audience some time to absorb the data.
5:24 is a perfect example where the audio is cut out to sanitize the classified information.
What a squandering of tax money! It could have been spent on education, public health, you Name it -
One _could_ argue that, in a sense, it kinda _was_ used for that.
One _could_ argue that, in a sense, it kinda _was_ used for that.
One _could_ argue that, in a sense, it kinda _was_ used for that.
We were doing these tests to protect us from the commies. And the commies were doing these tests to protect themselves from us. Kind of pointless, really. In the meantime, we're destroying the environment and our planet. And our planet will destroy us both to protect itself.
Not being slaves of Russia (had they built the fission or fusion bombs first) is part of our national public health plan.
Classic car fans cringe when they see the cars being destroyed good thing they weren’t 1970s muscle cars that’s all I gotta say
So shot number four was detonated at such a high altitude and its relative yield was so low as it never created a column so it never made the typical mushroom cloud shape because it’s a super heated column that creates the vacuum
The stem is material sucked from the ground.
The nuclear anti aircraft missiles were based on this.