Archimedes was a Greek mathematician and inventor. He was born circa 287 BCE in Syracuse, Sicily, Italy and died in 212 BCE in the same city.
Archimedes discovered the upward force we know as buoyancy and wrote the 'law of buoyancy' called, Archimedes' Principle.
Caption: : Both cubes have the same volume. One cube is less dense than the other cube. One cube is more dense the the other cube. The high density cube is heavier than the low density cube. The low density cube is lighter than the high density cube.