I think it is the volume displacement.
When you put an object into a container with a known volume of water, the water will rise, and that change of volume is the volume of the object you introduced into the container.
Chat with our AI personalities
Archimedes Principal is the principal for buoyancy
Archimedes studied astronomy, engineering, mathematics, and war tactics.
Archimedes discovered the concept of gravity with his levers and pulleys, his theory of displacement and invented the screw.
"Eureka!" (I have found it!) - his shout after discovering of so called Archimedes' Principle.
Archimedes is especially important for his discovery of the relation between the surface and volume of a sphere and its circumscribing cyclinder. He is known for his formulation of a hydrostatic principle (known as Archimedes' principle) and a device for raising water, still used in developing countries, known as the Archimedes screw.