Template:Selected anniversaries/April 23: Difference between revisions
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||1915 – Arnold Alexander Hall, English engineer, academic, and businessman (d. 2000) | ||1915 – Arnold Alexander Hall, English engineer, academic, and businessman (d. 2000) | ||
||Oleg Vladimirovich Penkovsky (b. 23 April 1919), codenamed HERO, was a Soviet military intelligence (GRU) colonel during the late 1950s and early 1960s. Penkovsky was responsible for informing the United Kingdom about the Soviet emplacement of missiles in Cuba, thus providing both the UK and the United States with the precise knowledge necessary to address rapidly developing military tensions with Soviet Russia. Pic. | |||
||Henry Ernest Dudeney (d. 23 April 1930) was an English author and mathematician who specialised in logic puzzles and mathematical games. He is known as one of the country's foremost creators of mathematical puzzles. Pic. | ||Henry Ernest Dudeney (d. 23 April 1930) was an English author and mathematician who specialised in logic puzzles and mathematical games. He is known as one of the country's foremost creators of mathematical puzzles. Pic. |
Revision as of 15:54, 23 March 2018
1858: Physicist and academic Max Planck born. He will make many contributions to theoretical physics, earning fame as the originator of quantum theory.
1933: Computer scientist, mathematician, and engineer Annie Easley born. She will be a leading member of the team which develops software for the Centaur rocket stage, and one of the first African-Americans to work as a computer scientist at NASA.
1939: Mathematician and inventor Alice Beta warns President Roosevelt that the Manhattan Project will have disastrous side-effects, including a wave of crimes against mathematical constants.
1941: Computer programmer and engineer Ray Tomlinson born. He will implement the first email system on the the ARPANET system, including the "@" separator which is still in use today.
1964: Physicist and crime-fighter Nikolay Basov uses quantum electronics modulator to detect and prevent crimes against mathematical constants.
1967: Soviet space program: Soyuz 1 (Russian: Союз 1, Union 1) a manned spaceflight carrying cosmonaut Colonel Vladimir Komarov is launched into orbit.