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History of Technology Videos 160 videos

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History of Technology 1: Nuclear Power 32 Views


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Description:

We hear nuclear power is explosively popular. Eh? Eh? ...Don't tell us to keep our day jobs. This is our day job.

Language:
English Language

Transcript

00:01

No you're not here shmoop er's we know the questions

00:04

that have been keeping you up at night and we're

00:06

here to answer him I'll soon you'll never have to

00:09

wonder about why electrons generate power when they moved from

00:12

adam adam or y particles even have energy in the

00:17

first place not questions that will keep you up at

00:20

night There everybody's a critic Well they were keeping someone

00:24

up at night A certain albert einstein And lucky for

00:27

us you figured it out The answer surprisingly simple e

00:32

equals m c squared In other words energy and matter

00:35

are the same thing And good thing we figure that

00:38

out because in the last two centuries human technology and

00:41

human knowledge of energy have taken huge leaps forward harnessing

00:44

wind and water allowed cities to grow and you know

00:47

have huge populations who need to be bed that steam

00:51

and coal started the industrial revolution and oil and electricity

00:55

spread mechanical advances to most of humanity during the twentieth

00:59

century At that point we pretty much thought that all

01:01

possible energy sources had been found harnessed and put to

01:05

work We're like work here's done fellas All innovation is

01:10

over Nothing else to do but sit back Chow on

01:13

tacos and watch tv Boy where we run in the

01:17

mid twentieth century we discovered an energy source with the

01:20

power to annihilate entire cities or provide electricity for millions

01:24

of home The first time in human history our energy

01:26

no longer came solely from the sun It's a matter

01:29

of fact we discovered what powers the sun in the

01:32

first place Yep We discovered nuclear power which turns matter

01:36

into pure energy And yeah we freaked out a little

01:39

bit We're still freaking out It's Intense stuff Some people

01:43

thought it was the end of the world Others thought

01:45

it was the miracle cure for all of our energy

01:48

problems Either way it was new It was unheard of

01:51

And it was kind of scary Like the first time

01:53

you had a crush on someone except not like that

01:56

at all months Nuclear power talk about anyway around nineteen

02:00

hundred people believe that adam's were totally solid like unimaginably

02:05

tiny pool balls Remember all that stuff about electricity and

02:08

moving electrons Yeah they had no idea what they were

02:10

doing but hey they couldn't even see adam's until the

02:13

invention of the electron microscope in nineteen thirty one so

02:18

give him a break Atoms are not solid They look

02:21

more like a mini solar system with a nucleus instead

02:24

of a son and electrons instead of planets Even more

02:27

alarmingly adams don't always stick together Sometimes atoms decay and

02:32

lose particles well This decay creates radiation a waves of

02:36

nasty energy and particles Radioactive decay happens in small amounts

02:41

all the time but hey depress everyone nobody freak out

02:45

Every piece of matter around us is not out to

02:48

kill us with radiation brings out that when adam's fall

02:52

apart they released energy And if we smash them on

02:56

purpose we can really make a lot of this stuff

02:59

the first time that human beings intentionally split and adam

03:01

was in nineteen thirty eight when two german scientist named

03:05

hahn and strassman blasted uranium atoms with other particles while

03:10

less scientific minds were blasting cans for fun Hahn and

03:14

strassman had noticed that a surge of energy happened when

03:17

uranium atoms or smacked around only they could make it

03:21

happen over and over and over again In a chain

03:23

reaction they could have produced unimaginable amounts of energy and

03:28

after the first nuclear reaction was created people naturally wondered

03:32

if nuclear power could be used as a weapon Because

03:35

it was the nineteen forties the entire world was at

03:38

war again and nuclear power would have been a pretty

03:41

sweet trump card Well as oppenheimer the head scientist of

03:44

america's nuclear bomb program said after successfully setting off the

03:49

first avon i am become death the destroyer of worlds

03:54

melodramatic but was not exaggerating Once again humanity had taken

03:59

a potentially beneficial new discovery Hand made it lethal Insert

04:03

a complete lack of surprise here This is why we 00:04:06.405 --> [endTime] can't have nice things

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