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B1 中级 英语 9:44 Educational

What If The Earth Stopped Spinning?

Vsauce · 21,426,073 次观看 · 添加于 3 周前

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B1

CEFR 等级

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字幕 (90 片段)

00:00

Hey, Vsauce. Michael here. The Earth is spinning and we are spinning along with it.

00:06

But what if the Earth suddenly stopped spinning?

00:11

Well, first of all, you would gain weight.

00:15

But that would be the least of your worries.

00:19

The spin of our planet is important and literally giving you the time of your life.

00:25

At the equator, the surface of Earth and everything on it is spinning around at

00:30

465 meters a second. As you move closer to the poles,

00:35

you don't have to move as quickly to complete Earth's daily rotation.

00:39

Here in San Francisco, the Earth is driving me east at 368 meters per second.

00:45

If I could float above the surface independent of the Earth's rotation,

00:49

the Earth would spin underneath me this quickly. Pretty cool.

00:54

But of course, when I jump straight up into the air,

00:57

the Earth doesn't move underneath me because I continue to spin with it.

01:01

We are all spinning with the Earth and that is why slamming on a set of magical planetary brakes

01:07

that caused everything classically called Earth to stop spinning would be catastrophic.

01:16

Immediately, everything that wasn't Earth and wasn't safely at the poles would continue moving as it had been

01:22

and be flung due east at more than a thousand miles an hour.

01:26

You wouldn't be flung into space because escape velocity is 24,800 miles per hour,

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