Template:Selected anniversaries/April 23: Difference between revisions
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File:Annie Easley.jpg|link=Annie Easley (nonfiction)|1933: Computer scientist, mathematician, and engineer [[Annie Easley (nonfiction)|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. | File:Annie Easley.jpg|link=Annie Easley (nonfiction)|1933: Computer scientist, mathematician, and engineer [[Annie Easley (nonfiction)|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. | ||
||1938: Stefan Drzewiecki dies ... scientist, journalist, engineer, constructor and inventor, working in France and the Russian Empire. He built the first submarine in the world with electric battery-powered propulsion (1884). Pic. | ||1938: Stefan Drzewiecki dies ... scientist, journalist, engineer, constructor and inventor, working in France and the Russian Empire. He built the first submarine in the world with electric battery-powered propulsion (1884). Pic. | ||
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||1951: American journalist William N. Oatis is arrested for espionage by the Communist government of Czechoslovakia. Pic. | ||1951: American journalist William N. Oatis is arrested for espionage by the Communist government of Czechoslovakia. Pic. | ||
File:Harry_Hinsley,_Edward_Travis,_and_John_Tiltman_in_Washington,_November_1945.jpg|link=Edward Travis (nonfiction)|1956: Cryptographer and intelligence officer [[Edward Travis (nonfiction)|Edward Travis]] dies. Travis became the operational head of Bletchley Park during World War II, and was later the head of GCHQ. | File:Harry_Hinsley,_Edward_Travis,_and_John_Tiltman_in_Washington,_November_1945.jpg|link=Edward Travis (nonfiction)|1956: Cryptographer and intelligence officer [[Edward Travis (nonfiction)|Edward Travis]] dies. Travis became the operational head of Bletchley Park during World War II, and was later the head of GCHQ. |
Revision as of 19:24, 26 January 2022
1858: Physicist and academic Max Planck born. He will make many contributions to theoretical physics, earning fame as the originator of quantum theory.
1869: Inventor Edward Hugh Hebern born. He will be a pioneer of rotor encryption machines.
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.
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.
1956: Cryptographer and intelligence officer Edward Travis dies. Travis became the operational head of Bletchley Park during World War II, and was later the head of GCHQ.
1967: Soviet space program: Soyuz 1 (Russian: Союз 1, Union 1) a manned spaceflight carrying cosmonaut Colonel Vladimir Komarov is launched into orbit.