浮沉子 Cartesian diver
（重定向自Cartesian devil）
![浮沉子演示动画(非吸管制)[1]](/uploads/202501/03/-Cartesian_diver.ogg2046.jpg)
'（英语：Cartesian Diver、Cartesian Devil
以手按压装满水之透明宝特瓶，可控制瓶中的浮沉子上浮或下沉。
Cartesian devil
中文百科
英语百科
Cartesian diver 浮沉子
（重定向自Cartesian devil）
A Cartesian diver or Cartesian devil is a classic science experiment, named for René Descartes, which demonstrates the principle of buoyancy (Archimedes’ principle) and the ideal gas law. René Descartes is said to have invented the toy.
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