Friday, August 22, 2008

This Week in Physics History: August 18 - 24

Aug. 19, 1662 -
French mathematician, philosopher, & physicist Blaise Pascal dies. Pascal was best known for his mathematical work, especially the formation of Pascal's Triangle (although he was not the first to develop it) as well as work in probability. In physics, Pascal is known for his impassioned defense of the scientific method, studies of fluids, and early work in thermodynamics, most notably pressure and vacuum experiments.
Aug. 23, 1806 -
French physicist Charles Augustin de Coulomb dies. His best-known achievement is the discovery of Coulomb's law for electrostatic force. The SI unit of charge, the coulomb, was named after him.
Aug. 21, 1814 -
Early American physicist and inventor Sir Benjamin Thompson, Count Rumford, dies. Thompson's work in questioning the orthodox physical theories of the time helped lay the foundation for revolutions in thermodynamics, especially in the realms of specific heats, heat transfers and thermal conducitivity. His views on heat as a form of motion helped lead to the kinetic theory and also the laws of conservation of energy.
Aug. 20, 1961 -
American physicist Percy Williams Bridgman dies. Bridgman won the 1946 Nobel Prize in Physics for his work in high-pressure physics. Aug. 21, 1993 - The Mars Observer spacecraft signal is lost by NASA.
Aug. 21, 1995 -
American astrophysicist (born in British India) Subrahmanyan Chandrasekhar dies. Chandrasekhar's theoretical work in cosmology and stellar evolution earned him the 1983 Nobel Prize in physics. The Chandra X-Ray Observatory satellite, deployed into space by the Space Shuttle Columbia in 1999, was named in his honor after a contest with 6,000 proposed names.
Aug. 24, 2006 -
The International Astronomical Union comes to the conclusion that they will redefine the term "planet" so that Pluto is no longer a planet