Amber DiGerolamo........UNIT 5--Universal Gravitation
He invented one of the most fundamental concepts of physics--the center of gravity. He also invented the sciences of mechanics and hydrostatics. Responsible for handful of inventions, including the "Archimedean Screw", still used for irrigation of water and other materials today. When the screw turns, water is pulled up from a tube, so the screw can pull water up from a river, lake, or well.