09/09/1823 - 04/30/1891
Joseph Leidy (September 9, 1823 – April 30, 1891) was an American paleontologist. Leidy was professor of anatomy at the University of Pennsylvania, and later was a professor of natural history at Swarthmore College.
05/23/1917 - 04/16/2008
Edward Norton Lorenz (May 23, 1917 - April 16, 2008) was an American mathematician and meteorologist, and a pioneer of chaos theory. He discovered the strange attractor notion and coined the term butterfly effect.
09/04/1927 - 10/23/2011
John McCarthy (September 4, 1927 – October 23, 2011) was an American computer scientist and cognitive scientist who received the Turing Award in 1971 for his major contributions to the field of...
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11/08/1923 - 06/20/2005
Jack St. Clair Kilby (November 8, 1923 – June 20, 2005) was a Nobel Prize laureate in physics in 2000 for his invention of the integrated circuit in 1958 while working at Texas Instruments (TI). He is also the inventor of the handheld calcul...
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01/11/1906 - 04/29/2008
Albert Hofmann (January 11, 1906 – April 29, 2008)was a Swiss scientist known best for being the first person to synthesize, ingest and learn of the psychedelic effects of lysergic acid diethylami...
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02/11/1839 - 04/28/1903
Josiah Willard Gibbs (February 11, 1839 – April 28, 1903) was an American theoretical physicist, chemist, and mathematician. He devised much of the theoretical foundation for chemical thermodynamics as well as physical chemistry.
07/09/1911 - 04/13/2008
John Archibald Wheeler (July 9, 1911 – April 13, 2008) was an American theoretical physicist who was largely responsible for reviving interest in general relativity in the United States after World War II. Wheeler also worked with Niels Bohr...
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12/30/1934 - 08/17/2005
John Norris Bahcall (December 30, 1934 – August 17, 2005) was an American astrophysicist, best known for his contributions to the solar neutrino problem, the development of the Hubble Space Telescope and for his leadership and development of...
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10/21/1921 - 07/22/2008
Victor Almon McKusick (October 21, 1921 – July 22, 2008), internist and medical geneticist, was University Professor of Medical Genetics and Professor of Medicine at the Johns Hopkins Hospital, Baltimore, MD, USA. He was the original author...
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06/08/1916 - 07/28/2004
Francis Harry Compton Crick (8 June 1916 – 28 July 2004) was an English molecular biologist, biophysicist, and neuroscientist, and most noted for being one of two co-discoverers of the structure of the DNA...
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Charles Moulton (William Moulton Marston)
05/09/1893 - 05/02/1947
Dr. William Moulton Marston (May 9, 1893 – May 2, 1947), also known by the pen name Charles Moulton, was an American psychologist, feminist theorist, inventor, and comic book writer who created the character Wonder Woman.
01/25/1921 - 11/28/2010
Samuel Theodore Cohen (January 25, 1921 – November 28, 2010) was an American physicist who invented the W70 warhead, more popularly known as the neutron bomb.
09/08/1941 - 10/09/2011
Dennis MacAlistair Ritchie (Username: dmr, September 8, 1941 — October 8/9, 2011) was an American computer scientist notable for developing C and for having influence on other programming languag...
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03/06/1917 - 03/26/2011
Harry Wesley Coover, Jr. (March 6, 1917 – March 26, 2011) was the inventor of Eastman 910, commonly known as Super Glue.