A human can't catch up with a tortoise? A shot arrow stops moving? What's wrong with Zeno's paradox?

Universe 14︱If heavy elements are synthesized from hydrogen, then where did the original hydrogen co

lilunkexue

1 View

How to make a Poo-Po-Po boat for Sosuke and Ponyo?

lilunkexue

44 Views

They say diamonds are forever, but they can be burned and broken.

haoqiwanhuatong

32 Views

Yemen is the first country to be destroyed by drugs, even children are not spared. How tragic is it?

tanmi

14 Views

Speed bump!! Amazing machinery~

jixiepangke

11 Views

Calculus for beginners, Episode 1

jianggushidelishu

13 Views

Super cool mechanical series of speed bumps! 7.18

jixiepangke

35 Views

[Made in Heaven] Say it one last time, the third winding will start to accelerate!

huanghunzhaoliangsenyu

36 Views

Tinker Bell's math learning CD clip

weilaishizhexiaowang

17 Views

Speed Bump Mechanical Series! 7.30

jixiepangke

11 Views

Let's take a look at those amazing work sites together~

jixiepangke

39 Views

20 common mechanical transmission structures, I'm exhausted

Jinzhengmeiyongde

71 Views

"Earthquake Bed," which has been watched by 50 million people online, is about to release version 2.

Feifeijianzhang

11 Views

【HISHE】Jurassic Park Parody 1

jiqishudezahuopu

21 Views

Introduction to Tequila

yaki1

56 Views

I advise you to quit porn (enlarging testicles)

xuetudexin-

38 Views

Complaints about Advanced mathematics

55732

215 Views

Why doesn't it hurt when a needle is stuck in my finger?

yaki1

43 Views

A group of bees sit in a "classroom" to study. Is that so cool? In fact, they are trained little ins

YouTubejingcaishipin-

14 Views

Could the rift in spacetime really open?

jingjing____

1.4K Views