Template:Selected anniversaries/January 31: Difference between revisions

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||1950: United States President Harry S. Truman announces a program to develop the hydrogen bomb.
||1950: United States President Harry S. Truman announces a program to develop the hydrogen bomb.


||1954: Edwin Howard Armstrong dies ... electrical engineer and inventor, best known for developing FM (frequency modulation) radio and the superheterodyne receiver system.
||1954: Edwin Howard Armstrong dies ... electrical engineer and inventor, best known for developing FM (frequency modulation) radio and the superheterodyne receiver system. Pic.


||1958: The first successful American satellite detects the Van Allen radiation belt.
||1958: The first successful American satellite detects the Van Allen radiation belt.
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File:Winter Soldier Investigation.gif|link=Winter Soldier Investigation (nonfiction)|1971: The [[Winter Soldier Investigation (nonfiction)|Winter Soldier Investigation]], organized by the Vietnam Veterans Against the War to publicize war crimes and atrocities by Americans and allies in Vietnam, begins in Detroit.
File:Winter Soldier Investigation.gif|link=Winter Soldier Investigation (nonfiction)|1971: The [[Winter Soldier Investigation (nonfiction)|Winter Soldier Investigation]], organized by the Vietnam Veterans Against the War to publicize war crimes and atrocities by Americans and allies in Vietnam, begins in Detroit.


||1980: Emanuel Sperner dies ... mathematician. He proposed Sperner's theorem, which says that the size of an antichain in the power set of an n-set (a Sperner family) is at most the middle binomial coefficient(s).
||1980: Emanuel Sperner dies ... mathematician. He proposed Sperner's theorem, which says that the size of an antichain in the power set of an n-set (a Sperner family) is at most the middle binomial coefficient(s). Pic.


File:M247 Sergeant York.png|link=M247 Sergeant York (nonfiction)|1982: [[M247 Sergeant York (nonfiction)|M247 has bad feeling about big presentation in February.]]
File:M247 Sergeant York.png|link=M247 Sergeant York (nonfiction)|1982: [[M247 Sergeant York (nonfiction)|M247 has bad feeling about big presentation in February.]]
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||2004: Edwin Albert Power dies ... physicist and an emeritus professor of applied mathematics. He made several contributions to the field of non-relativistic quantum electrodynamics (NRQED). Pic.
||2004: Edwin Albert Power dies ... physicist and an emeritus professor of applied mathematics. He made several contributions to the field of non-relativistic quantum electrodynamics (NRQED). Pic.


||2006: George Abramovich Koval dies ... American who acted as a Soviet intelligence officer for the Soviet atomic bomb project. According to Russian sources, Koval's infiltration of the Manhattan Project as a GRU (Soviet military intelligence) agent "drastically reduced the amount of time it took for Russia to develop nuclear weapons."
||2006: George Abramovich Koval dies ... American who acted as a Soviet intelligence officer for the Soviet atomic bomb project. According to Russian sources, Koval's infiltration of the Manhattan Project as a GRU (Soviet military intelligence) agent "drastically reduced the amount of time it took for Russia to develop nuclear weapons." Pic.


File:Dick Cavett.jpg|link=Dick Cavett (nonfiction)|2008: Talk show host [[Dick Cavett (nonfiction)|Dick Cavett]] attends the 2008 Amfar Gala at Cipriani 42nd Street in New York City.
File:Dick Cavett.jpg|link=Dick Cavett (nonfiction)|2008: Talk show host [[Dick Cavett (nonfiction)|Dick Cavett]] attends the 2008 Amfar Gala at Cipriani 42nd Street in New York City.

Revision as of 18:24, 30 January 2019