A 68-year-old retired man from the countryside invented a magical bicycle and won several patents.

稀土是什么？“中东有石油，中国有稀土”！了解中国稀土的重要性

lengkepu

2 Views

The power of science

haoyongwujingongju

13 Views

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

haoqiwanhuatong

25 Views

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

tanmi

11 Views

Introduction to Tequila

yaki1

42 Views

How to lay a qualified asphalt road? #Science #Unzip #Paving #Knowledge

haoqiwanhuatong

12 Views

20 common mechanical transmission structures, I'm exhausted

Jinzhengmeiyongde

65 Views

Spoon/fork: If I had known this was a bad factory

xiaokechibaobao

54 Views

How Tsunamis Are Formed (3D Principle)

Jinzhengmeiyongde

12 Views

When MC upgrades, it becomes more scientific, and the maximum level is beyond my imagination # Minec

Xiaomengbugugu

50 Views

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

yaki1

35 Views

I advise you to quit porn (enlarging testicles)

xuetudexin-

30 Views

【HISHE】Jurassic Park Parody 1

jiqishudezahuopu

14 Views

【Medical Review】Review of 50 Popular Medical Videos Online

Xiaomingdeyilurichang

1 View

China Super Wind Tunnel

youyisi2025

1 View

A man died and resurrected ten times in 27 years, and his family has become numb.

beiwei__aopi-

3 Views

Stock Connect account opening with 0.65‰ commission, waived for amounts under 5; How to open a Hong

lanqiaocaijinglishi

1 View

What is the mercury heart? Slowly bring an iron nail close to mercury and an interesting scientific

lengkepu

1 View

From the mining of uranium ore to the production of nuclear fuel rods

lilunkexue

3 Views

I heard you are good at physics?

haoyongwujingongju

4 Views