Achimedes Thoughtful, by Domenico Fetti (1620)
(c. 287 - c. 212 BC). Ancient Greek mathematician, engineer, physicist, astronomer, and inventor. Archimedes is considered the greatest mathematician of the ancient world, and one of its greatest scientists.
Archimedes'
water screw—one of the earliest hydraulic machines
Archimedes' other innovations include deriving an approximation of pi, proving the law of the lever, and the design of compound pulleys, as well as war machines for the defense of his native Syracuse (Source for images:
wikipedia.org).
Founded in 1880 to address failures in steam boiler pressure vessels, the American Society of Mechanical Engineer has grown to more than 85,000 members in 135 countries.