Oppenheimer Atomic bomb How it Works | First Nuclear Bomb

Mysterious Strange Things
Music by Yung Logos
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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[@Aitelly]

Please Subscribe Like and Comments We love You Guys!

[@Thomas-41234]

There wasn't machine guns. They were too heavy.

[@Aitelly]

@@Thomas-41234 I saw in pearl harbour they put broom stick. Is it true

[@KaeBae_]

Manhattan is misspelled in the beginning. Other than that, cool video ☺️

[@mach150]

Request : active protective system, active protective armor

[@jeusmarcomascarina4102]

I subscribe because of tank animation and now couldn't regret. 🥰

[@santaclause3487]

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.

[@elmcreekrr]

I taught physics for over 4 decades. Sure wish I had this type of animation. Well done.

[@Aitelly]

We're Just amateur and Highly obliged to have you here in our small Channel

[@justlucky8254]

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.

[@laurapalmerTDGE]

I'm an '82 and I understand your reasoning completely. The animation makes it even more interesting, and gives a better scope.

[@satishkamtikar958]

Physics is very interesting. Once you start reading you don't want to stop

[@kg-Whatthehelliseventhat]

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. 🤝

[@M0NMCAmateurRadioStation]

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.

[@billant2]

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.

[@asdTER8]

@@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

[@ArtBellJr]

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.

[@BjarneLinetsky]

Ordnance arming circuitry always incorporates redundancy. If a connection is required between two points, two or more wires will be used, in case one breaks.

[@johnh2410]

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.

[@Aitelly]

Thanks John for your great Feedback. We love these type of Comments

[@itoobe]

.

[@allangibson8494]

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)).

[@buckhorncortez]

@@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.

[@allangibson8494]

@@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.

[@peanutz23]

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.

[@saminsiddiquee2059]

what moral weight? what morals? this bomb killed so many people, what morals are you talking about?

[@TheStealthDawg]

What did you think of the movie?

[@100ovrbatmanbron7]

@@TheStealthDawg it’s excellent

[@peanutz23]

@@TheStealthDawg the movie was masterful.

[@satyaprakash03133]

Got enough inspiration, now make one !

[@TheMaverickjc29]

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.

[@Aitelly]

@TheMaverickjc29 Thanks we love you guys!

[@waverunner7063]

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.

[@lewis7515]

@@waverunner7063 Both.

[@Jay-jb2vr]

Failure was not an option for them. They had to get it right the first time.

[@MarcusAurelius7777]

@@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.

[@ct1762]

B29 must've been staggeringly advanced for it's day. Such a cool plane.

[@Kimber123]

It's all American ingenuity at it's finest. Truly remarkable - the planes, the bombs, just astounding.

[@wjm5972]

the b-29 and the bomb were the two most expensive weapon systems of the war@@Kimber123 both stolen by the russians

[@Hespro]

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.

[@Aitelly]

Thanks for your business too

[@allendracabal0819]

Good point. Now back to my prank videos and cute animal videos...

[@leehauxwell1149]

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.

[@Aitelly]

Thnaks! i did not know that

[@TechDove]

I thought it had the top and rear guns, but not the lowers

[@markceaser8073]

@@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.

[@andrewcomments5812]

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. 😂

[@FIREBRAND38]

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.....

[@Roberto-REME]

Outstanding video production. Your graphics are educational, easy to follow and great visual aids helping understanding. Your narration is superb. Really well done!

[@galanonim4936]

This DIY project looks dope asf. Can't wait to try it at home

[@ogala-okoriemirrianugochi3405]

Thanks for this wonderful explanation. I finally understand how atomic bombs work now ❤.

[@peepsibhoy]

no you don't..

[@sandman7642]

You never miss a wave of hype... cheers mate 🥂

[@Aitelly]

Cheers Sandman.

[@JDisStrange]

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.

[@BertRowe-b3l]

No criticality incident?!

[@johnolson4096]

Micro-burst. Insufficient contact area for anything to be sustained as it was the corner of one ring slamming the flat surface of another.

[@sinebar]

If the flash was blue that's criticality. And of course a bit of heat.

[@budlanctot3060]

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.

[@JDisStrange]

@@sinebar It was rather spectacular, but not sustained. Just that burst, flying sparks, a bit of smoke. It was a nice wake-up call.

[@BruceHurley]

The animation is awesome. It's weird that there are misspellings of relatively simple words. That makes me question the attention to detail on the rest of the project. The AI narrator is excellent, but certainly not perfect. Fantastic job! I never knew exactly how this worked before.

[@ghost307]

Excellent, but I feel compelled to point out that "square kilometers" is not a measure of radius.

[@Aitelly]

Ok got it Thanks for the fedbacks

[@mheradiranto6110]

very informative and interesting video content... and thanks for including the metric conversion, very helpful to understand how the atomic bomb works....

[@Aitelly]

@mheradiranto Thanks

[@keizai1404]

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.

[@Gallagherfreak100]

I read somewhere the gun type U235 bomb was so inefficient, that despite the bomb containing approx 135 lbs of U235, only a piece about the size of a dime actually underwent fission. The rest of the U235 was simply blown apart. It took an enrichment plant located in Oak Ridge, TN about three years to produce the U235 used in the little boy bomb and at certain points, was consuming about 10% of the all the electric power available in the U.S. A rather inefficient use of resources.

[@brucelee5576]

The gun type was never even tested , the first drop was the test.

[@Aitelly]

Yes

[@Sokol10]

Because the gun type was a simple project, although little effective, only about 1 KG of 65 KG of Uranium effectively start the chain reaction. The abandoned "Thin Ma"n was similar gun type, but require a high velocity "gun" and the Poloniun was subject to pre detonation, destroying the bomb before the effective explosion. When the Uranium became available in sufficient quantity they create the "Little boy". This type of bomb was to be abandoned, but issues with Poloniun production in 1946 lead to construction of dozen of "gun type" bombs as add hoc solution.

[@kenmizell7533]

Excellent and easy to understand production. I enjoyed it. Thank you.

[@Aitelly]

Glad it was helpful!

[@charlesburns7391]

Oppenheimer comes out and suddenly everyones an expert ( not talking about the guy making the video)

[@justaguy6100]

One term you missed using for fusion is "critical mass," the point at which there's enough fissionable material for fission reactions to propagate.

[@DayTradeArcade]

Awesome animation! Super easy to understand + very helpful!

[@travisteets5257]

My friend Quentin Vanwinkle worked on the triggering design of the two bombs. He was a chemistry professor at osu in the 1940s

[@mathijeba5375]

Please make an video about explaining radars • how it works •why old radars are curved and why new radars are flat •how do they find a target how it will know it's range ,the direction it's moving •what are the difference between x-band radars, L-band radars and vhf-band radars and how vhf-band radars can deduct stealth fighters and why x-band radars can't Literally how it's works please🙏🙏🙏 make it happen please🙏🙏

[@keizai1404]

your question: •why old radars are curved and why new radars are flat "" this is about the display unit of the radar system. older radar displays were analog CRT tubes that were made with a curved surface so an electron "gun" at the back could shoot electronics that strike phosphors on the surface of the curved tube. newer displays: the introduction of digital displays made using flat sheets of glass reduced bulk and increased display resolution.

[@bulgingbattery2050]

The implosion fission bomb is much more efficient than the gun-type fission bomb. With an implosion device, you get greater yield using the same amount of fissile material that a gun-type device would use.

[@Zee_Bul]

7:53 - The diameter is a straight line, measuring distance from opposite points on the circle line going through the middle of the circle. It cannot be expressed in a squared meters, miles, kilometers or whatever.

[@bamaknifeguy]

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 🤌🏼

[@thedolt9215]

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.

[@Guafarina]

For anyone interested in some context, Hiroshima and Nagasaki were actually just another day in Japan during this time. In 1945, 68 cities in Japan were either partially or completely destroyed. 66 were with conventional bombs, 2 with atomic bombs. Conventional raids had hundreds of bombers and thus a more widespread destruction. In fact, it could be argued some of these conventional raids had the same or worse destructive effects of the 2 a-bombs. For example, the March 9-10 raid of Tokyo is the most destructive attack ever in history, it burned out 16 miles of the city and killed an estimated 120K people. Hiroshima was within the scale of what was happening at the time. Reports coming to Japanese government of cities being 80-90+% destroyed due to American bombings was common.

[@427SuperSnake1]

The arming plugs were not just pulled, they were replaced with 3 arming plugs to complete the circuit.

[@jmgiv48]

There appears to be some confusion; both in the video's title and the comments that follow. An "atomic" bomb relies on fission, a "nuclear" bomb relies on fusion, triggered by fission. Both rely on nuclear reactions but, technically, the atomic bomb is fission bomb, the hydrogen bomb is a nuclear bomb. Or something like that. :D

[@quinntacony9577]

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.

[@Niever]

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.

[@alejandrogalarza3147]

Fun fact: this information in 1940 would be highly classified and today you can find it on youtube

[@DragonKhy]

Science is a wonderful and scary thing, and everyone workin on the video did an excellent job on verbally and visually explaining it 👍❤️

[@dhoyda]

8:53 The initiators were not needed in the gun style bomb. Even if they failed to create any neutrons, the newly formed mass of uranium would be well above the critical mass needed for spontaneous fission to occur. They were more of an afterthought than a necessary piece of the bomb.

[@1000padmanabhan]

Now I know that it is the distance from the ground that triggers the action. Thank You.

[@mrvark]

The 509th BW B-29s had the 'Silver Plate' modification, which removed all the gun turrets, with only the 20mm tail guns remaining.

[@JasonTDolan]

Amazing animation detail. I've subscribed. Thanks for explaining how the Atomic Bomb works. Great channel you have. 👍

[@wmascolin]

How much of this was AI? So many small and easy to catch errors make me feel like this was nearly an entirely AI generated Script and reading.

[@Mark-zp6nq]

Feeding 5,000 was swiftly forgotten about 😂

[@tkskagen]

Great series full of information that I didn't learn back in 1988-1993 (before graduation)...

[@OlyPop22]

Great Presentation, Understandable Explaination, beutiful animation and a TERRIFIC EXPLOSION.

[@hernancoronel]

Typo at 2:23 “Superfortress Bomber” should be the correct name! Thanks for the video!

[@mitch3384]

It must have been really weird finding out that the name and logo of your KZbin channel had been painted on the Little Boy weapon nearly 80 years ago!

[@shawnchittle3779]

You didn't even spell Manhattan right.

[@aydenburris8631]

It's weird to think that such a small amount of material can create an explosion like that

[@XZeroOneArmour]

Science

[@Nobody_896]

I love this stuff, not necessarily about nukes, but but your animations ,excellent stuff, of course I subscribed as I'm in to self education, do you take suggestions on things to animate?

[@aeir_028]

video was nice & informative but I just can't get over that misspelling at 2:20 "fortress"

[@rodneyjohnson8907]

Thanks for the animation. Well done and taught me the differences between the two bombs. Thank you!

[@balajis7937]

Thanks for the simple yet detailed animation video

[@한효진-f8z]

It was very well made video to understand the principle of the bomb. I think it will help me when watching movie. thanks for this nice video :)

[@marvinjensen2205]

Wonderful explanation. Thank you for your brilliant presentation.

[@alexb6821]

Thanks guys can't wait for the enrichment episode

[@Chris7Lawrence]

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.

[@GoldenRakerRock]

Excellent summary! Thanks!

[@georgekraus9357]

Correction: The B-29 Bomber Enola Gay had all anti-aircraft guns removed except for the rear.

[@toydecarvalho7419]

Excellent documentary. I'm looking forward to more.

[@jaywinters2483]

Met two WW2 vets were we convinced they would have died in the invasion of Japan had we not used it. They credited it to saving their lives.

[@AMC2283]

and they were right

[@christopherleubner6633]

The cringeworth part is a modern nuke is about 380 pounds and can yeild about 186kt and could be easily stuffed in a car's trunk.. 😮

[@Conversationsthatqure]

Extremely insightful

[@a10sim]

Thanks for your hard work on the superb simulation. Very well executed and extremely informative.

[@fromniceguystogoodmen7725]

One note: the B-29 was the "Superfortress", not the "Superfortess" (2:23)

[@mcmobius1]

2:50 also not "projecTILE" rings.

[@mcmobius1]

5:00 not "fuseLEGDE"

[@hellbent7066]

I work for KPAGF and didn't know why all my nukes were all duds. It's a tough job because my boss is an idiot as every failure cost me 10 lashes and a pound of flesh. Thank god I'm fat lol. But thanks to this wonderfully illustrated video, I now see, all this time I was just missing the 4 Pelonium initiators.👍 Just kidding 😂. Great video man👍

[@johnmoller222]

I spent my USAF career within 15' of thousands of 'special weapons' and all of the delivery systems. The 80's were a tense time with Reagan and Gorbachev. Did we win the 'cold war'? Yup.😊

[@Roberto-REME]

Could you take-on explaining the portion of Einstein's theory of gravity with respect to a falling body in a gravitational space (i.e. earth) is actually in an inertial frame of reference and it's earth that is accelerating up.

[@tk423b]

You spelled it Superfortess and said it that way. Wow.

[@fiftycal1]

Well done! I’d like to see a similar video on Fatman.

[@stevemuchnick]

Great video-Well done, and narrated with excellence. I will be a new subscriber startimg today

[@PGBRTRM]

Would be great to see more animations like this but for mechanisms of actions of medicine

[@nordattack]

You didn't explain why the bomb blows up. How does the uranium go critical? What is a polonium initiator and how does that cause the uranium to blow up?

[@Shadobanned4life]

Thanks for an impressive video! Great work.

[@nathanfugate8210]

It's Manhattan, not Manhatten. Also, Little Boy was THE first nuclear weapon used on humans.

[@cheesetomato9140]

This bomb was 'an oppenheimer' like you'd say your hoover is a Dyson.

[@liveevents9191]

Such GOOD work. Thanks very much!!

[@richardlangdon1096]

It was not called "Low Boy." It was called "Little Boy," because it was smaller than the other bomb. Which was called "Fat Man." For obvious reasons.

[@snoobeagle]

Great documentary!

[@Aitelly]

Glad you enjoyed it!

[@NZU-ws9kv]

The statement of USA's Lieutenant general,Leslie Richard Groves (1896-1970)who was ordered to be the top leader of the Manhattan Project in Sept.1942 by the USA President Franklin Delano Roosevelt(Democratic Party)was recorderd on 3rd April 1970,three months before his death, and it was left at the USA's National Archives and Records Administration, NARA in Washington DC.FDR didn't tell anything about the atomic bomb to the next President Harry S. Truman. USA Army originally planned to drop 17 atomic bombs on Kyoto,Tokyo Bay, Kawasaki, Yokohama, Nagoya,Osaka, Koube,Hiroshima, Kure,Yamaguchi, Kokura, Yawata,Shimonoseki,Fukuokam , Kumamoto, Sasebo and Nagasaki.

[@ad_2211]

Crazy to think that Fat Man weighed over 5 tonnes but actual plutonium mass that converted to energy to flatten Nagasaki was less than 10 grams.

[@originalsungkim]

Very good and clear animations and explanation!

[@lowell418]

Note spelling: Manhattan Superfortress Otherwise, superb!

[@jamesboekbinder3967]

Great animations!

[@Aitelly]

Thanks bro

[@danielsnook5029]

@2:40: "Project Tile." 😂

[@martinalarcon3108]

And the dropping of atomic bombs gave birth to monster island and Godzilla and the rest of his buddies 😢😮

[@jasonwilson6281]

You would think with all the work put into this video, they would spell Manhattan correctly...

[@stefanomarzari4388]

A brilliant explanation of a humanity's disaster.

[@seamy2020vision]

Excellent narration, well done all

[@Hoodieman18]

I am very surprised by your animations, and hope that you continue

[@dal2479]

Great job explaining

[@georgesilverhawkstrailcame2297]

Very interesting and informative. Great work.

[@RomanAgust-z9m]

Great explanation, enjoy the 3D animation

[@JC-jl5tj]

Narrator sounds like Dean Cain, the dude who played Superman.

[@jamesstuart3346]

0:29 Name of project is incorrect. Not a good start 😮

[@Electrowasabi]

Question: So the chain reaction produces energy so what makes it explode into a fireball? is the energy released so immense that the air surrounding it ignites?

[@spacenout_6946]

I'll never hear the words fuselage and kilometer the same way again.

[@silvergate8952]

Great explained thank you for your great work

[@djtony9879]

Thank you for explaining it and in basic English

[@VipulJiyani-x6l]

Excellent explanation

[@tr_2sc1970]

If killing a person jails one say 100 years on earth! How many years 'hell punishment' for those who collaborated to melt thousands of humans!?