Template:Selected anniversaries/June 20: Difference between revisions
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||1884 – Mary R. Calvert, American astronomer and author (d. 1974) | ||1884 – Mary R. Calvert, American astronomer and author (d. 1974) | ||
||Benjamin deForest "Pat" Bayly (b. June 20, 1903) was a Canadian electrical engineer and a professor at the University of Toronto. During World War II he invented a cypher machine called the Rockex and handled communications at the secret intelligence base Camp X. | |||
||John Ronald Womersley (b. 20 June 1907) was a British mathematician and computer scientist who made important contributions to computer development, and hemodynamics.[1] Nowadays he is principally remembered for his contribution to blood flow, fluid dynamics and the eponymous Womersley number, a dimensionless parameter characterising unsteady flow. | ||John Ronald Womersley (b. 20 June 1907) was a British mathematician and computer scientist who made important contributions to computer development, and hemodynamics.[1] Nowadays he is principally remembered for his contribution to blood flow, fluid dynamics and the eponymous Womersley number, a dimensionless parameter characterising unsteady flow. | ||
Revision as of 18:32, 6 December 2017
1875: Inventor and engineer Wilhelm Bauer dies. He designed and invented submarines.
1876: Adventurer and alleged "Pirate of the Prairie" Wallace War-Heels says that he has "offered no man violence", but admits that he has "responded to violence with greater violence, many times."
1877: Alexander Graham Bell installs the world's first commercial telephone service in Hamilton, Ontario, Canada.
2010: Unlicensed Extract of Radium factory accidentally releases self-sustaining colony of transdimensional corporations.