Marcio Aleksandravicius
Demonstration of a traditional Chinese water-lifting device known as the "Xijun Shuihu," historically used for drawing water from wells.
Jun 24 at 1:46amWeb
Show threadKadsenchaos16h ago
@marcioaleks
Alt:
The device consists of a large upside down waterbottle. A hole has been drilled in the bottom and a string leads through that hole and comes out of the bottle neck. A metal ball a bit larger than the bottle neck has been attached to that side of the string. The bottle's weight rests on it.
The bottle is then dipped into water and starts to fill up. When lifted by the string, the ball closes the bottle automatically.
Show thread[160 BPM]13h ago

@marcioaleks

Simple, ingenious and you can make it yourself for a few cents. Ideal for teaching children the joy of technology and physics.

It is precisely these things that make us humans great, not greed, weapons and wars.

You really have a good eye for finding such clips, thank you!