Cartesian Diver
Sinks / Doesn’t Sink
Sometimes called a “Cartesian diver,” this hollow body is partially filled with water and air. Depending on the pressure in the liquid, it either floats or sinks.
When a body enters another medium (such as a liquid or a gas), it experiences buoyant force. This principle applies to ships, submarines, and hot air balloons, as well as a wooden plank, an air bubble in water, or a slowly sinking mist droplet.
Topic
Physics
Mechanics
Buoyancy
Thermodynamics
Pressure and volume
Technology and design
Function and construction
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