Margaret Bryan

On Jan. 6, 1797, Charles Hutton, a well-respected British mathematician, wrote a letter to a young woman in London, Margaret Bryan.  Mrs. Bryan had written a textbook on astronomy for young women; it was still in manuscript, and she had sent it to Hutton for his...

James Bryant Conant

James Bryant Conant, an American chemist, was born Mar. 26, 1893. Conant played a vital role in the Manhattan Project of World War II; many people have heard of J. Robert Oppenheimer, the chief scientist on the Manhattan Project, and some know of his boss, General…