SHEILA TERRY / SCIENCE PHOTO LIBRARY SHEILA TERRY / SCIENCE PHOTO LIBRARY
Archimedes of Syracuse (c. 287-212 BC), Greek mathematician, physicist and engineer. Archimedes is regarded as the greatest mathematician of ancient times. He used geometry to measure the volume of solids, and calculated an approximation of pi correct to 3 decimal places. He is said to have discovered the Archimedes principle whilst taking a bath. This principle states that a body immersed in a fluid experiences a buoyant forceequal to the weight of the displaced fluid. Archimedes also explained the principle of the lever, and developed the compound pulley and the Archimedes screw. Engraving from the title page of a collection of Archimedes' work edited by Joseph Torelli and published in 1792.
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