After six lessons, we finally derive the Laplacian operator in spherical coordinates!

Who know this? An old handicraft

6.5K Views

From everyday life to creative design, the brilliant applications of physics principles are everywhe

3 Views

Calculus for beginners, Episode 1

26 Views

Battery Magnet Train

11.6K Views

[SCIENCE]Amazing Science Toys|Mr. Mind Blow

16.8K Views

【Multi-sub】平行恋爱时差 19丨Love Unexpected 19 相爱的两个人终将会在平行时空相遇

634 Views

Woodpecker: My house was robbed

69 Views

The power of science

78 Views

[gerand fanfiction] Monk physically saves the devil

65 Views

This piano is so white!

66 Views

The Monster’s Redemption

12 Views

Crocodile: Humans are way more ruthless than I am!

10 Views

Epstein Video Files

1.8K Views

[Comic Exhibition] Liuzhou 4.22 Comic Exhibition

95 Views

Far more than the average family car? A palm-sized inline four! The whole process of assembly!

1.6K Views

DIY Process | DIY Tricks You Could Use

649 Views

Gu Xun’er: While I was gone, Xiao Yan actually had a kid—time to crush them good!

328 Views

37 hidden tricks for wrenches—how many do you know?

37 Views

Behold my graceful dance!

21 Views

Quadratics In Vertex Form 顶点形式的二次方程

25 Views