11/27/1701 - 04/25/1744
Anders Celsius (27 November 1701 – 25 April 1744) was a Swedish astronomer. He was professor of astronomy at Uppsala University from 1730 to 1744, but traveled from 1732 to 1735 visiting notable observatories in Germany, Italy and France. He...
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10/20/1919 - 07/25/2008
H. Tracy Hall, who died Friday at 88, was an American physical chemist, he was the first to synthesize diamonds in the laboratory, in 1954, fulfilling what scientists sought for at least two centuries.
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.
04/27/1791 - 04/02/1872
Samuel Finley Breese Morse (April 27, 1791 – April 2, 1872) was an American contributor to the invention of a single-wire telegraph system based on European telegraphs, co-inventor of the Morse code, and an accomplished painter.
03/15/1926 - 10/17/2009
Sheldon Jerome Segal (March 15, 1926 – October 17, 2009) was an American embryologist and biochemist who spent his entire career working on contraception and made major innovations in the field of long...
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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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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.
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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Ted Maiman (Theodore Harold Maiman)
07/11/1927 - 05/05/2007
Theodore Harold "Ted" Maiman (July 11, 1927 – May 5, 2007) was an American physicist who made the first LASER (Light Amplification by Stimulated Emission of Radiation).
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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12/26/1880 - 09/07/1949
George Elton Mayo (26 December 1880 - 7 September 1949) was an Australian psychologist, sociologist and organization theorist.
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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04/08/1850 - 04/30/1934
William Henry Welch, M.D. (April 8, 1850 - April 30, 1934) was an American physician, pathologist, and medical school administrator. He was one of the "Big Four" founding professors at Johns Hopkins Hospital.
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.