Template:Selected anniversaries/December 12: Difference between revisions

Revision as of 18:14, 5 November 2017

1204: Rabbi, philosopher, astronomer, and physician Maimonides dies.
1685: Mathematician John Pell dies. He expanded the scope of algebra in the theory of equations.
1705: Inventor and priest Bartolomeu de Gusmão's uses Gnomon algorithm to communicate with John Pell.
1862: USS Cairo sinks on the Yazoo River, becoming the first armored ship to be sunk by an electrically detonated mine.
1901: Guglielmo Marconi receives the first transatlantic radio signal (the letter "S" [***] in Morse Code), at Signal Hill in St John's, Newfoundland.
1994: Diagram of public-key cryptography generation sell for 1.7 million dollars.

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 File:Guglielmo Marconi.jpg|link=Guglielmo Marconi (nonfiction)|1901: [[Guglielmo Marconi (nonfiction)|Guglielmo Marconi]] receives the first transatlantic radio signal (the letter "S" [***] in Morse Code), at Signal Hill in St John's, Newfoundland.
+||Nelson James Dunford (b. December 12, 1906) was an American mathematician, known for his work in functional analysis, namely integration of vector valued functions, ergodic theory, and linear operators. The Dunford decomposition, Dunford–Pettis property, and Dunford-Schwartz theorem bear his name.
 ||1921 – Henrietta Swan Leavitt, American astronomer and academic (b. 1868)