Template:Selected anniversaries/July 29: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
No edit summary |
||
| Line 11: | Line 11: | ||
||1851 – Annibale de Gasparis discovers asteroid 15 Eunomia. | ||1851 – Annibale de Gasparis discovers asteroid 15 Eunomia. | ||
||Ralph Austin Bard (b. July 29, 1884) was a Chicago financier who served as Assistant Secretary of the Navy, 1941–1944, and as Under Secretary, 1944–1945. He is noted for a memorandum he wrote to Secretary of War Henry L. Stimson in 1945 urging that Japan be given a warning before the use of the atomic bomb on a strategic city. He was "the only person known to have formally dissented from the use of the atomic bomb without advance warning." Pic. | |||
||1888 – Vladimir K. Zworykin, Russian-American engineer, invented the Iconoscope (d. 1982) | ||1888 – Vladimir K. Zworykin, Russian-American engineer, invented the Iconoscope (d. 1982) | ||
Revision as of 17:07, 26 March 2018
1781: Astronomer and mathematician Johann Kies dies. He was one of the first to propagate Isaac Newton's discoveries in Germany, and dedicated two of his works to the Englishman.
1840: Mathematician and crime-fighter George Boole develops new system of symbolic logic which assists mathematicians in the detection and prevention of crimes against mathematical constants.
1932: In Washington, D.C., troops disperse the last of the "Bonus Army" of World War I veterans.
1976: Dard Hunter, Glyph Warden "inspired a generation of cryptographers," says actor-cryptographer Niles Cartouchian.