**
Graziano & Raulin**

**Research Methods (8th edition)**

**Archimedes** (287-212 B.C.) was a Greek mathematician, who
produced classic works on geometry, arithmetic, and mechanics. Among
his many inventions was a water pump to raise water from lower to
higher elevations, and he is credited with the discovery of the
principle of the lever.

Archimedes may be best known for his discovery of the law of
hydrostatics--that is, the **Archimedes principle **that a body
in a fluid is buoyed up by a force equal to the weight of the fluid
it displaces. He is supposed to have discovered the principle in a
flash of insight as he stepped into a bath and observed the
displacement of water, after which he ran naked through the streets
yelling, “Eureka!” (Such are the ways of some scientists and
mathematicians, but such behavior is not mandatory in science.)