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History of Technology 4: How Do Nuclear Bombs Work? 21 Views
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Description:
Time to find out how nuclear bombs work. And no, there won't be an actual demonstration. We may be evil geniuses here at Shmoop, but we're not that evil.
Transcript
- 00:03
Some out there may be wondering how nuclear bombs work. [Boy thinking of nuclear bombs]
- 00:06
Don’t ask that question too loudly…
- 00:08
…you don't want the NSA knocking on your door.
- 00:11
They really do send out the CIA for that kind of thing. [CIA collecting boy in his bedroom]
- 00:14
Okay, but in all seriousness, how the bomb works is pretty common knowledge.
Full Transcript
- 00:19
First, we need some unstable isotopes like uranium or plutonium, which can be easily [uranium and plutonium isotopes]
- 00:24
bashed apart by neutrons.
- 00:26
You'd be unstable too if you knew you could be easily bashed apart at any minute.
- 00:32
Once we get our hands on some uranium, you know that ebay thing we then have to enrich that
- 00:37
uranium to get it be as bomb-friendly as possible. [woman attempting to catch uranium in a street]
- 00:41
Enriched uranium is only the beginning of all the fun we’re about to have.
- 00:45
…Yeah, we have a weird idea of fun.
- 00:47
And yeah, we've had the CIA visit us before. We don't like to talk about it [CIA knocking on mans door]
- 00:49
Moving on.
- 00:51
Next, we have to package the uranium in such a way that it won't…[Man packaging uranium in a wooden crate]
- 00:56
a) accidentally leak and give everybody instant cancer….
- 01:00
b) can be triggered from a nice, long distance away… [explosion in the distance]
- 01:04
And…
- 01:05
c) it will make a chain reaction and lead to the kind of explosion that can level entire cities.. Like that. [A city crumbles to the ground]
- 01:10
So, the uranium is packed tightly into the core of the bomb and surrounded by the explosive, [Uranium packed into the core of the bomb]
- 01:17
TNT.
- 01:18
A remote control is then set to detonate the TNT at a later date.
- 01:23
When that goes off, it subjects the uranium in the core to extreme heat and pressure. [uranium in the bomb heating up]
- 01:28
Some of the nuclei of the unstable atoms start whizzing into tiny particles and shooting
- 01:34
neutrons out at other atoms.
- 01:37
This blows the other atoms apart, which explode too. [atoms blown apart]
- 01:39
It's kind of a chain reaction, and the reason the devastation of nuclear bombs can be so unimaginably [bomb explodes]
- 01:45
huge.
- 01:46
Talking less about physics and more about human existence, nuclear weapons are a lot
- 01:50
more awful than just a molecular chain reaction as to calculate in math school [two boys watching a bomb explode on the TV and one runs out of the room]
- 01:55
The first part of the bomb is a giant, blinding flash of light and heat.
- 01:59
And we're not using the word "blinding" casually… [a blinding white flashing light]
- 02:02
It can literally melt eyeballs…ever see Raiders of the Lost Ark?
- 02:06
Good for you.
- 02:07
Those Nazis in the movie haven't.
- 02:08
…Heh.
- 02:09
It can also cause instant third-degree burns... [images of third degree burns]
- 02:13
And this burning actually precedes what comes next…
- 02:16
An incinerating wave of fiery death. [man in a flame filled street]
- 02:19
Yeah, nothing about this video is good news.
- 02:22
It’s so hot and powerful that buildings are atomized.
- 02:25
And then, almost worse than everything else, there's a wave of horribly poisonous radiation that lingers for decades. [poisonous radiation spreading across a city]
- 02:31
If we get hit with enough of it, we turn into human goo within a few hours or days.
- 02:35
If we get a lesser dose, it takes us weeks or months to die from cell damage and all kinds of bad stuff.
- 02:41
And even if we get very little radiation exposure, it will slowly poison us for the rest of our [man suffering with poisonous radiation]
- 02:46
lives and we can still drink it inside of cows milk.
- 02:49
We can look forward to things like infertility, leukemia, skin cancer, lung cancer, birth
- 02:53
defects, and blood disorders.
- 02:56
Seriously, guys…
- 02:57
Why not to invent something a little more horrific next time? [lab workers thinking about a new discovery in the lab]
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