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Desbloqueie ferramentas de aprendizado com IA

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B1 Intermediário Inglês 6:30 Educational

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Vsauce · 18,390,016 visualizações · Adicionado há 2 dias

Estatísticas de aprendizado

B1

Nível CEFR

5/10

Dificuldade

Legendas (108 segmentos)

00:00

Hey, Vsauce Michael here coming to you from my hotel room in London

00:04

with a little camera that I taped to a bunch of furniture I stacked up.

00:08

Which is better than nothing, and as you can tell from the title of this video,

00:13

it's also what we're going to discuss.

00:15

Nothing.

00:17

Can there ever be nothing? I mean, we're surrounded by matter all the time.

00:22

Even this glass is not empty.

00:24

I know you might think there's nothing in it, but it's full of air.

00:27

And air is packed.

00:29

One cubic centimeter of air contains almost

00:33

30 quintillion molecules.

00:36

But if I remove the air from this glass,

00:39

I can create what is known as a vacuum,

00:42

an awesome word that uses a double u, but not a w.

00:46

The challenge, however, is removing all of the air.

00:51

To this day, the best scientists have been able to do

00:54

is to create what they call an ultra-high vacuum.

00:58

At this point, one cubic centimeter

01:00

of space contains not 30 quintillion molecules,

01:04

but a mere and amazing 100.

01:07

To put that in perspective, a vacuum cleaner

01:10

like you use at home hardly changes the thinness of the air at all.

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