What is a "sliding vane pump"? Twist the eccentric rotor in the middle and something interesting hap

The incredible "Laval tube": the wider the tube, the faster the gas flows. Do you know the principle

14 Views

Puzzle animation engineering vehicle excavator toy animation forklift crane cartoon

19.3K Views

Isn't this a perpetual motion machine?

123.0K Views

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

29 Views

Is “sex” really that important in love?

8.8K Views

Self-modified spring bar wheel

8.2K Views

Digital pickled vegetables: one is better than ten.

70 Views

Robot War

22 Views

What is the principle behind submarines? What's the difference between nuclear and conventional subm

30 Views

What Kind of Baby Animal Is This?

383 Views

Men's Speed Bumps: Skilled Worker Series~

55 Views

Smart Excavator

20 Views

Anime|So Many Cars, Let's Build An Amusement Park

4.1K Views

These people are the smartest—they spend one ticket to watch two movies!

14 Views

fun magnetic game

98.1K Views

"This is the deadly sense of oppression of mechs! Boy"

15.3K Views

[Possessed Animation] March 7 is parasitized by a mechanical bug

846 Views

If you find these stones, do you still need to go to work? If you come across them, don’t throw them

32 Views

Sex is a resource women hold in their hands—and a key factor that shapes women’s social hierarchy an

934 Views

The outrageous failure encountered by the auto mechanic: the car cannot be worn with high heels

26 Views