The video owner has disabled playback on external websites.
This video is no longer available on YouTube.
This video cannot be played right now.
Watch on YouTube
学习统计
CEFR 等级
难度
字幕 (126 片段)
[Applause]
Five fun physics phenomena. Number one,
have a friend hold a cane out
horizontally for you or another similar
object and putting your two index
fingers together, try to place them
underneath the center of mass. When they
let go, you will find it doesn't
normally work. But now try putting each
index finger at opposite ends of the
cane and then moving your index fingers
in towards the middle. What you will
find is that they always end up right
under the center of mass of the cane.
You can try starting off asymmetrically
and they will still end up under the
center of mass. You can try going at
different speeds, really slowly
or really fast.
But you still end up perfectly under the
center of mass.
How does this work? Number two, the
phone flip. Have you ever tried to spin
your phone? If you do it in this
direction, it's pretty easy. It stays
nicely aligned. If you spin it along its
完整字幕可在视频播放器中查看
评论 (0)
登录后评论互动模式
测验
正确答案：
相关视频
EASTERN PHILOSOPHY: Wu Wei
Dáin Ironfoot | The Hobbit: The Battle Of The Five Armies 2014 4K HDR !
Jerry Seinfeld What men are really thinking
Clueless Gamer: "Overwatch" With Peter Dinklage & Lena Headey | CONAN on TBS
Guardians of the Galaxy vol 3 - I'm Done Runnin' Hallway Fight (4K HDR) | High-Def Digest
Veritasium
测验
正确答案：
观看视频时会出现测验
记忆技巧
来自此视频
免费开始学语言
