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B1 Intermediário Inglês 5:28 Educational

5 Fun Physics Phenomena

Veritasium · 6,547,894 visualizações · Adicionado há 3 semanas

Estatísticas de aprendizado

B1

Nível CEFR

5/10

Dificuldade

Legendas (126 segmentos)

00:00

[Applause]

00:01

Five fun physics phenomena. Number one,

00:04

have a friend hold a cane out

00:05

horizontally for you or another similar

00:07

object and putting your two index

00:10

fingers together, try to place them

00:11

underneath the center of mass. When they

00:14

let go, you will find it doesn't

00:16

normally work. But now try putting each

00:21

index finger at opposite ends of the

00:23

cane and then moving your index fingers

00:25

in towards the middle. What you will

00:28

find is that they always end up right

00:32

under the center of mass of the cane.

00:35

You can try starting off asymmetrically

00:37

and they will still end up under the

00:42

center of mass. You can try going at

00:44

different speeds, really slowly

00:54

or really fast.

00:57

But you still end up perfectly under the

01:01

center of mass.

01:03

How does this work? Number two, the

01:06

phone flip. Have you ever tried to spin

01:08

your phone? If you do it in this

01:10

direction, it's pretty easy. It stays

01:12

nicely aligned. If you spin it along its

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