The "green stuff" is for better visual communication. Im sure youve noticed that big ben tower isnt purple.

I like how he doesn't pause after every statement, and instead pauses when an actually important statement is made, or when there is more to be said that Kurzgesagt left out.

Technically the power of all nuclear weapons would be much larger. The video only consider all bombs as uranium bombs. But hidrogen bombs are much more powerful. For example, the Tsar bomb alone is enough to rebuild 1/3 of Manhatthan. If we detonate the real nuclear bombs that we have, the damage will be far heavier

The uranium stuff is covered in one of the end scenes of one of the videos, it also explains why some stars and black holes are decorated. The target audience likely wouldn't believe a faint blue glow representing radioactive material, and it would require another 10% of runtime to convince them exactly why it glows blue.

Coming to this a bit late, but I enjoyed your reaction to this video. You were a bit low on the numbers of warheads in the stockpiles at the height of the Cold War...the global peak was in the mid 1980s when the number topped 70k total warheads stockpiled among all nuclear armed nations. The number of deployed warheads was somewhat smaller, but still topped the 25k level between the US and Soviets,,,if that is what you were referring to. ✌

Amazing videos man, i'm a big kurzgesagt fan but your in depth details make it even better. Keep up the good work!

Uranium does tend to glow a nice neon green under UV light though. It has nothing to do with radioactivity or fission. It just turns out it's a fluorescent material. They used to sometimes use it for glow in the dark stuff but it turns out it's a toxic heavy metal several times more dangerous than lead (again, this has nothing to do with its radioactivity). They also used to make Radium phosphorescent glow paint, but that was not glow in the dark. Rather, it used horrifyingly radioactive material to make paint that glows for millennia without an extermal power source. This has since been replaced by Tritium, which is also horrifyingly radioactive but the radiation isn't penetrating.

More than anything this video shows the immense power of a large object moving very quickly. Using all the uranium of an entire planet for thermo-nuclear reactions is only just equivalent to getting a big rock and throwing it at the planet. It’s incredible life has survived all the extinction level events it has, especially considering the dinosaurs extinction event wasn’t even the worse, not even close in terms of percentage of the planets biomass killed

8:57 That's a cartoon version of the helmet - part of a Power Armor in the Fallout (game) universe.

Next question to tackle: what if we used up all of the deuterium in earth's oceans to build as many thermonuclear warheads as possible? My best guess: many many many orders of magnitude more power... probably even enough to gravitationally unbind earths entire mass, blowing the planet into a hot, expanding cloud of plasma, surpassing even the power of the death star from Star Wars.

I think uranium is erroneously depicted as green just because that's what a huge majority of people associate with radioactive materials. Makes it easier to communicate ideas concerning the topic

Yellow uranium would probably would be one of the most cursed things i have ever seen

i think by having all nukes in a singular area wont be as devasting as one would think, since less oxygen can be sucked up for fuel due to starvation, a fighting fire with fire scenario

I really like your videos,thank you....A little thing about the original that gets to me , he said "decimate" the city's that means get rid of 1 out of 10... What he meant was 💯% of the citys gone

I think it was around 70000 bombs at height of cold war,but i maybe wrong

You are so under rated you need more subs

If you liked that video you might also like "The Day the Dinosaurs Died - Minute by Minute" by Kurzgesagt. I liked your reaction!

really enjoy your content keep it up

2 Smart people Reacting and Talking, I love it.

The comments talking about how the maths is off, should remember that there is almost no eay to successfully detonate 15,000 warheads without some of them being destroyed before they activate.

Weather's, winds, that MF is gonna be top boss after....

The weatherman is top dude......

big factor not taken into account is that the effects don't scale linearly like this. Many of the warheads would simply be demolished by the blast rather than add to the explosive yield. The would add a bit to the fallout, but not to the actual destructive effect or the radiation and thermal pulses. This is why when a target is to be hit by multiple warheads in close proximity they're staggered in time (and usually space) so each warhead arrives after the main blast of the previous one has dissipated. This isn't just the case with nuclear weapons, obviously, but with conventional explosives as well.

Great vid

I will officially call kurzgesagt kurzgeasasot now

I wonder what simulation program was used to determine the results. I would definitely try simulating these events wirh MCNP and HYSPLIT

Speaking of Nuclear, they made a good job covering the subject. Well there is a lot more to know!

6:48 I mean green is better than a piss rock though

could the sustained ignition of the athmosphere come in to conversation at some point? I remember this being a concern for early nuclear tests and it being refuted but can it still happen at that volume?

I’m 10 and I’ve always been interested in nuclear energy and I want to be a nuclear physicist when I’m older love your vid’s keep up the good work👍

I think the green glow from nuclear material was originally propagated by the use of radon on clock faces makeup and and any number of products.

Correction: In the hight of the cold war it peaked at around 60k warheads total, not 20k to 25k! In 1987 soviet union had close to 40k nukes.

That's what happens when we see artifacts from history that cannot be explained

"It still wouldn't be green" HAH I mean that's true, but it's funny 😁

'. . . And now the unpleasant part begins . . .'

true pure uranium (wheter 235 or 238 [ive never actually seen U-232]} just looks like a genrally gray metal. there are certain compound of uranium that flouresce green under UV light but uranium itself, no matter what isotope, is a gray metal.

I wonder what the weakest element on the periodic table is, that could survive a nuclear explosion from any distance from the first blast point and stay the same element?

Oh boy I sure do hope that nothing bad happens to Brazil

the first part doesnt take the amazon ecosistem into acount as its a major part of the world climate

Teacher: Why is the Cold War not as deadly as you think? Me: The Space Race!

During the peak of the Cold War, the total number of nuclear bombs was closer to 50-60 thousand if not more.

I think we're down to about 13000 now. great move

1:45 huh. Interesting, I was under the impression that nukes were always on a steady increase.

There was a total of around 72,000 bombs actually.

Beep boop I am the nuclear engineer robot

How would this affect the stock market

Have you ever seen Look Around You? The first season is especially good. It’s an English parody of classroom science videos where everything is absurdly wrong and it might be fun for you to make videos about.

2:53 the fire bombings of Tokyo did more damage than hiroshima

This would be HORRIBLY inconvenient...

I have heard the nuclear winter extinction event about a million times and I still have issues believing humans can not survive extreme cold. Especially, with the technology we have today. At the simplest level all you have to do is burn stuff to produce both electricity and heat. To grow food all you need is heat and electricity. I believe this type of event would throw us back to level 1 but I think "some" would survive. An ok, analogy would be the international space station. Space is COLD, but the people survive up there just fine and they do grow things. Granted they do not produce enough to keep them alive but at the same time that isn't their goal as they can easily be resupplied from Earth.

I recommend the deep sea nuke video. Its conclusion so perfectly confirmed my priors I'd like to throw an expert at it to be sure. Edit: Nevermind, you already responded to it. The dumbass thing is, I *DID* search for it before I asked, but KZfaq deliberately destroyed its own search engine to the point of it being less effective at finding what you put in the box than the related videos.

MATH!!!!

Each bird is one of their Patreons

Imagine kurzgesast says lets add more nukes like a gigazillion more😂😂😂😂😎

Note with the 10 billion bombs, the entire atmosphere doesn't heat up to oven-like temperatures. Instead, the sky is entirely glowing hot reentry plasma, which radiates down through the atmosphere cooking anything with a clear view of the sky. Your indoor air in your house would not be an oven, nor would the air at 5000 feet or whatever. Instead, opaque surfaces would be cooked.

nice vids

I question whether you could actually get every nuclear weapon into a pile and successful detonate them. They are fairly sensitive devices and I really wonder if the Neutron flux from 1 bomb is gonna cause fizzles in the neighboring bombs. Surely this should be the case for gun type weapons but I think even implosion type weapons might not be immune.

Maximum destruction is achieved when bombs are dispersed between targets but targets are concentrated. This is probably one of the least effective uses of nuclear arsenals imaginable.

is the the glowing green stuff inspired by the element Radon?

While accurately depicting uranium would a good teaching point, the picture would likely read as just a rock or mountain in a cartoon. Unfortunately, the green glowy imaginary rock is the universally(*) understood as being radioactive material. (*) probably not universal. I wonder what color non english speaking cultures depict radioactive material as...

I very seriously doubt that billions of Little Boy bombs in pile would go off. Right, let's say they are perfectly synchronized (lol) and the explosive timing is perfect and the velocity of the same in every device (again lol) something like 5% of them are just gonna fizzle from spontaneous fission getting out of control and ruining the whole thing. Problem is, this will occur before ANY have properly l detonated, spraying neutrons everywhere at relatively considerable speeds. The remaining projectiles have just inches to go before the neutron source in the bomb activates them. However, they are immediately showered with neutrons causing sympathetic fizzling. You will not get 10 billion detonations. You'll get 10 billion fizzles.

you look so tiered

Speaking of the cartoon bribs... you an actually get your own birb and be in one of their videos

anyone see the TARDIS?

But don't we actually need the Amazon forest? Just saying . . .

If one is like a disaster Why do we have like 15k of them and flex them like legos? Does exploding one in the wrong place would detenate the other one?

Twenty to twenty five thousand? Nuh uh! Try a peak world stockpile of over _sixty thousand bombs_ If we choose an estimated average of say, 333kt per bomb we get... 20.3 Gigatons of TNT. Chicxulub was 100,000 Gigatones of TNT. 5,000 times the entire stockpile. Or three hundred and five million 333kt bombs. I wonder what the Theia impact was? Because that made The Moon.

It = bad

You're overly focused, almost insulted personally, by the usage of green to depict uranium or nuclear waste. This is a common thing going as far back as the 80's with Toxic Avenger and many other "nuclear" based media, probably made even more popular by The Simpsons and the green glowing rod in the intro. Its not a Kurzgesagt specific thing.

Why does everyone have to know your sexual orientation just by hearing your voice..?