Niels Bohr’s hater-inspired flash of insight lead him to the perfect material to build the atomic bomb. LINKS / welchlabs / welchlabs www.welchlabs.com/
I’m a Ph.D. particle physicist, and this is the first time in at least a decade I’ve learned something I didn’t know about nuclear physics. And you didn’t at an undergraduate level in under 4 minutes. Thank you!!
Those are very cool anecdotes (especially the bits about the dispute between Placzek and Bohr @1:10 )! Were these just dramatic retellings, or could be pointed to/cited from some autobiography?
AWESOME. BRAVO!!! I didn’t realize you were doing a series. Can’t wait for the next episode. I hope this one also goes viral, so more people can enjoy. :)
very good video but to short! You build it up to an extremely exciting level but you suddenly stop. You could extend it to the actual building of the bomb. Again; very good video!
My takeaway: we need honest critics to call us on our crap, or what they think is crap, to crystallize our world view and/or inspire us to new ways of thinking.
Yo, THX, I can look at the new-to-me science OG lit, (math included), or I can listen while I'm housekeeping, and I'll still get something useful. Good scripts, plesant delivery (it's a compliment, take it).
That's... just where it ends? This video was great but just as you were building up to the climax it just ends, like you accidentally uploaded the intro to a longer video
3:43 Uranium-235 was not the perfect material to build the atomic bomb. Plutonium-239 was. It's much easier to produce, and as an extra bonus it has a smaller critical mass.
he hadn't actually found the perfect material for the atomic bomb. A Uranium gun type bomb, while relatively easy to construct, is extremely wasteful of fissile material. A Plutonium implosion device, while harder to construct, is much more efficient (thus requiring a lot less expensive fissile material), which is why pretty much all nuclear weapons now are Plutonium implosion devices. He did discover the most efficient fuel for nuclear reactors, slightly enriched Uranium.
Only nitpickers would make such a big deal over someone's name being mispelled when it involves such amazing visual representation and thought provoking ideas on a molecular level and even more importantly when the English language spells Garage and giraffe with the same first letter. Hopefully someone will correct my grammer and speeling
This from Dr Jorge Diaz goes the next step.."Critical Mass: when the atomic bomb got real"... when it is Rudolf Peierls make the correct calculation of the critical mass of an atomic bomb using pure U-235 of about 45.9 Kg, which brought about the real rush for the Atomic bomb, when the previous calculation made by Francis Perrin had calculated it to be 40 000 Kg of U3O8 that largely consisted of U-238... ua-cam.com/video/LduH7613QXw/v-deo.htmlsi=G0QkB3Kt_hKYGLPS
One thing wrong about this video, Bohr, Heisenberg and many others are Far more important then Einstein. Einstein was the scientist most WRONG in the history of Physics. His own words Against the MOST Important Theory in Physics, Quantum Mechanics, and his complete failure to understand the most important and basic mechanisms of Quantum Mechanics made him look pathetic actually (combined with the failure of the several studies he made to progress relativity). Also the most important discovery he took part was made by Others ... Relativity was a work of Minkowski. So no Einstein is not even close the most important scientist far from it actually.
Einstein understood QM rather well. He just didn't accept it as a complete theory. Aside from that Einstein is among the most important scientists of all time making so many almost completely original explanations and predictions about both the very large and the very small.
I wonder how much I can trust the research here, when the name of the main protagonist is constantly (NOT just once!) written incorrectly. Such a basic thing… So, what else did you get wrong? 🤔
Sometimes I wonder just how much of a condescending prick a single human being can be? And then a post like this comes along that confirms my suspicion that man has an infinite capacity for such douchebaggery.
I think when it comes to complex ideas like this, spelling would be at the bottom of the priority list...especially considering the english language spells giraffe and garage with the same first letter. And maybe he did it on purpose anyways...just sayin
@@jayrussell3796 It is just basic good manners not to misspell someone's name. Btw, Niels Bohr was Danish, so your point about English spelling is irrelevant.
@@redplanetzeal1461 who cares. The guy is dead. What does he care if his name is mispelled. So really, it's your point that is irrelevant. Negative criticism is bad manners, so really your comment is doubly irrelevant. Pay attention to the things that matter and don't waste time on pointless, mundane critiques. I can see you are anal about trivial topics and it's people like that who really take away from what's important. Not to mention, the original comment attempts to undermine the validity of the creator of the video over one irrelevant mistake. Get a life.
@@redplanetzeal1461 and btw...whether he's danish, mexican, or martian, the sentence was in english, so therefore it's spelled in the english language with english characters. Which, btw, is the go-to language for most of us now, hence our conversation.
That became very important when he calculated the critical mass for a atomic explosion using the formula developed by the MAUD committee using U-235, and found that the critical mass was not in terms of metric tons, but of the owner of about 1 to 3 kg... This was then inc in the report from the MAUD Committee, and passed to the United States which led to the establishment of the Manhattan district, and the urgency to develop an atomic bomb... en.wikipedia.org/wiki/MAUD_Committee
PS: I suggest you also do a short documentary on the MAUD Committee and their report.... As their work was fundamental to the development of the US and later the UK atomic bomb projects...
I’m a Ph.D. particle physicist, and this is the first time in at least a decade I’ve learned something I didn’t know about nuclear physics. And you didn’t at an undergraduate level in under 4 minutes. Thank you!!
Absolutely loved your last video! Super excited that you have another out. One of my new favorite science channels
Exactly!!!
Awesome thanks for watching!
Weclome back Welch Labs! I always wondered where the heck you went after explaining complex numbers. Good stuff, thanks for another zinger!
Thank you!
Top notch production design for these videos, awesome!
God damn, your storytelling makes physics so riveting!
Thank you!
This is such a good channel, and such a good video! How does it not have millions of views?
I love this type of content, keep it coming!
Thanks! Will do!
@@WelchLabsVideoYeah bro, much more please
Bohr was a giant! Thanks for highlighting this step on the road
I'm so happy Welch Labs is back
Thanks for watching!
His name is "Niels" :)
That's because there were two of him. Quantum stuff.
Well this is one way to get better at spelling.
oh, don't be a bohr! 😋
@@WelchLabsVideo Niels Bohr Zod!!!
Thanks for a succinct, insightful video.
Thank you!
Those are very cool anecdotes (especially the bits about the dispute between Placzek and Bohr @1:10 )! Were these just dramatic retellings, or could be pointed to/cited from some autobiography?
So good! Can’t wait for more
Thank you!
AWESOME. BRAVO!!!
I didn’t realize you were doing a series. Can’t wait for the next episode. I hope this one also goes viral, so more people can enjoy. :)
I hope so too!
the azshara portal was actually just one of the devs ideas for the location
Great video!
Back to back videos 😃
Now waiting for amazing series just like imaginary number. Oh man, I can't forget that series.
But what topic 🤔
@@WelchLabsVideo 5D numbers 😆
Thanks a lot, great stuff, as always 🎉❤
Thank for watching!
@@WelchLabsVideo Thanks for making such great content, can't wait for the rest of the series!
very good video but to short! You build it up to an extremely exciting level but you suddenly stop. You could extend it to the actual building of the bomb. Again; very good video!
Niels*
Great video! Welcome back! Clever to time the series a few weeks out from “Oppenheimer”😉
Didn’t originally plan that but worked out nicely!!
beautiful video
Awesome content
Thanks!
Gosh I wish there was a larger back catalog of videos. Your videos are binge worthy!
Are we going to get Oppenheimer's contributions in one of the next videos? Just in time for the new movie?
Something like that I hope!
Nice video, stating the date when this anecdote took place would make it a little better.
Your videos are must watch.
Thanks!
Is there a Part #2? It ends kinda abruptly!
My takeaway: we need honest critics to call us on our crap, or what they think is crap, to crystallize our world view and/or inspire us to new ways of thinking.
Yo, THX, I can look at the new-to-me science OG lit, (math included), or I can listen while I'm housekeeping, and I'll still get something useful. Good scripts, plesant delivery (it's a compliment, take it).
Nice video. A minor drawback is that "Niels" is misspelled in the video.
Great job making Bohr not Bohring!
I do not regret that pun
the not-so-bohring-world of Nils Bohr
Awesome
Awesome
Neils :-D WTF :-D It's Niels ...
I know right! 🤦♂️
Oh buddy, you spelled his name wrong. Niels Bohr is the correct spelling, not Neils.
Ah I know right! 🤦♂️
An Einstein drop and a bohr's wave
That's... just where it ends? This video was great but just as you were building up to the climax it just ends, like you accidentally uploaded the intro to a longer video
He must have the most misspelt name of all time. Listen folks, this is how you spell Niels.... *N...I...E...L...S...!!!*
You really need an outtro, bro.
Simply put, thorium cannot be weaponized
3:43 Uranium-235 was not the perfect material to build the atomic bomb. Plutonium-239 was. It's much easier to produce, and as an extra bonus it has a smaller critical mass.
You've spelled Niels wrong. It's not neils. Otherwise a splendid video.
What to read for more detailed explanation of the the things mentioned in this video
Reading list coming!
he hadn't actually found the perfect material for the atomic bomb. A Uranium gun type bomb, while relatively easy to construct, is extremely wasteful of fissile material.
A Plutonium implosion device, while harder to construct, is much more efficient (thus requiring a lot less expensive fissile material), which is why pretty much all nuclear weapons now are Plutonium implosion devices.
He did discover the most efficient fuel for nuclear reactors, slightly enriched Uranium.
Great videos, but it's Niels Bohr, not Neils Bohr.
"Neils" aaaaaaahhhhhhhhhhh
🤦♂️
Neils Bohr, lol
Only nitpickers would make such a big deal over someone's name being mispelled when it involves such amazing visual representation and thought provoking ideas on a molecular level and even more importantly when the English language spells Garage and giraffe with the same first letter. Hopefully someone will correct my grammer and speeling
*gramer and spilling
@@imveryangryitsnotbutter Thank yuo
duh, that was obvious
It's "Niels", not "Neils"
This from Dr Jorge Diaz goes the next step.."Critical Mass: when the atomic bomb got real"... when it is Rudolf Peierls make the correct calculation of the critical mass of an atomic bomb using pure U-235 of about 45.9 Kg, which brought about the real rush for the Atomic bomb, when the previous calculation made by Francis Perrin had calculated it to be 40 000 Kg of U3O8 that largely consisted of U-238...
ua-cam.com/video/LduH7613QXw/v-deo.htmlsi=G0QkB3Kt_hKYGLPS
Bohr ripped off Gamov work.
👍
This video might not be performing well because of a certain word in the title? Which is a huge shame
That would be a bummer! Let me try a different title here…
☢️💣💥
Where was Niels brother during this didcovery? . You know, the Math genius / Olympic athlete
Probably playing football/soccer.
Yay physics. Boo nuclear weapons.
Did the Russians know this at the time?
They had a spy who stole knowledge from the project.
comment for boost
Haha thanks!!
One thing wrong about this video, Bohr, Heisenberg and many others are Far more important then Einstein. Einstein was the scientist most WRONG in the history of Physics. His own words Against the MOST Important Theory in Physics, Quantum Mechanics, and his complete failure to understand the most important and basic mechanisms of Quantum Mechanics made him look pathetic actually (combined with the failure of the several studies he made to progress relativity). Also the most important discovery he took part was made by Others ... Relativity was a work of Minkowski.
So no Einstein is not even close the most important scientist far from it actually.
GPS works perfectly, thanks einstein -)
Einstein understood QM rather well. He just didn't accept it as a complete theory.
Aside from that Einstein is among the most important scientists of all time making so many almost completely original explanations and predictions about both the very large and the very small.
I wonder how much I can trust the research here, when the name of the main protagonist is constantly (NOT just once!) written incorrectly. Such a basic thing… So, what else did you get wrong? 🤔
Sometimes I wonder just how much of a condescending prick a single human being can be? And then a post like this comes along that confirms my suspicion that man has an infinite capacity for such douchebaggery.
I think when it comes to complex ideas like this, spelling would be at the bottom of the priority list...especially considering the english language spells giraffe and garage with the same first letter. And maybe he did it on purpose anyways...just sayin
@@jayrussell3796 It is just basic good manners not to misspell someone's name. Btw, Niels Bohr was Danish, so your point about English spelling is irrelevant.
@@redplanetzeal1461 who cares. The guy is dead. What does he care if his name is mispelled. So really, it's your point that is irrelevant. Negative criticism is bad manners, so really your comment is doubly irrelevant. Pay attention to the things that matter and don't waste time on pointless, mundane critiques. I can see you are anal about trivial topics and it's people like that who really take away from what's important. Not to mention, the original comment attempts to undermine the validity of the creator of the video over one irrelevant mistake. Get a life.
@@redplanetzeal1461 and btw...whether he's danish, mexican, or martian, the sentence was in english, so therefore it's spelled in the english language with english characters. Which, btw, is the go-to language for most of us now, hence our conversation.
That became very important when he calculated the critical mass for a atomic explosion using the formula developed by the MAUD committee using U-235, and found that the critical mass was not in terms of metric tons, but of the owner of about 1 to 3 kg... This was then inc in the report from the MAUD Committee, and passed to the United States which led to the establishment of the Manhattan district, and the urgency to develop an atomic bomb...
en.wikipedia.org/wiki/MAUD_Committee
PS: I suggest you also do a short documentary on the MAUD Committee and their report.... As their work was fundamental to the development of the US and later the UK atomic bomb projects...
To think you would stop using the rene Descartes plane once you were in theoretical physics/ Nuclear physics how disheartening lol.