David C. Cassidy Biography

David Charles Cassidy (born August 10, 1945, one day after the atomic bombing of Nagasaki) is an American historian of science and professor emeritus at Hofstra University, Hempstead, New York. His father, trained in history and business, was a labor-relations executive at the Ford Motor Company. His mother, a survivor of the Armenian Genocide, became a librarian. Cassidy is best known for his contributions to the history of quantum mechanics, scientific biography, history of physics in Germany and the United States and, most recently, science-history drama.