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. | ||
File:Alice Beta.jpg|link=Alice Beta|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]]. | |File:Alice Beta.jpg|link=Alice Beta|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]]. | ||
||1940 – The Rhythm Club fire at a dance hall in Natchez, Mississippi, kills 198 people. | ||1940 – The Rhythm Club fire at a dance hall in Natchez, Mississippi, kills 198 people. |
Revision as of 18:51, 21 April 2018
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.
1967: Soviet space program: Soyuz 1 (Russian: Союз 1, Union 1) a manned spaceflight carrying cosmonaut Colonel Vladimir Komarov is launched into orbit.