球面上的波 | A wave on a sphere

Saddle lens

宋词新唱：端午泛湖

A lonely wave self-interference

Chinese Ri name

Semicircular pendulum wave

Saddle Mirror

机械非门

反弹吃豆人2

反弹吃豆人

Eccentric gear reciprocating motion

The Legend of the Origin of the Shang Dynasty

简易脱靴架 | Knee-boot jack

Old story : Wheat on the chessboard

Reciprocating motion to rotational motion

Fun Experiment:Particle Fountain

Explanation of Möbius Transformation

Four-bar mechanism draws straight line

Interference of 6 waves

Interference of 5 waves

The traditional Chinese timekeeping system: 12 shi

Spaceship wipers

Flush door

Draw a deltold with a linkage mechanism

Fun Mathematics: Two Points on a Circle

The Dance of Pendulum

four bar linkage x3

SailCG's Physics video collection 2023

SailCG‘s Astronomy Video Collection 2023

SailCG's Mechanical Video Collection 2023