Daily Archives: April 20, 2018


Percy Williams Bridgman
April 21 is Percy W. Bridgman’s birthday. Bridgman was an American physicist known for his work in high-pressure physics. Bridgman began his career studying the effects of high pressure on matter as a professor at Harvard. During a repair of his equipment, he came up with an idea to improve the seal […]

Today in Science History – April 21 – Percy W. ...