Template:Selected anniversaries/August 20: Difference between revisions
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||1858 – Charles Darwin first publishes his theory of evolution through natural selection in The Journal of the Proceedings of the Linnean Society of London, alongside Alfred Russel Wallace's same theory. | ||1858 – Charles Darwin first publishes his theory of evolution through natural selection in The Journal of the Proceedings of the Linnean Society of London, alongside Alfred Russel Wallace's same theory. | ||
||1915 – Paul Ehrlich, German physician and academic, Nobel Prize laureate (b. 1854) | |||
||1917 – Adolf von Baeyer, German chemist and academic, Nobel Prize laureate (b. 1835) | |||
||1920 – The first commercial radio station, 8MK (now WWJ), begins operations in Detroit. | ||1920 – The first commercial radio station, 8MK (now WWJ), begins operations in Detroit. | ||
File:John_Fleming_in_Fleming_tube.jpg|link=John Ambrose Fleming (nonfiction)|1923: Miniaturized version of [[John Ambrose Fleming (nonfiction)|John Ambrose Fleming]] delivers lecture from within Fleming tube. | File:John_Fleming_in_Fleming_tube.jpg|link=John Ambrose Fleming (nonfiction)|1923: Miniaturized version of [[John Ambrose Fleming (nonfiction)|John Ambrose Fleming]] delivers lecture from within Fleming tube. | ||
||1961 – Percy Williams Bridgman, American physicist and academic, Nobel Prize laureate (b. 1882) | |||
||1962 – The NS Savannah, the world's first nuclear-powered civilian ship, embarks on its maiden voyage. | ||1962 – The NS Savannah, the world's first nuclear-powered civilian ship, embarks on its maiden voyage. | ||
||1975 – Viking program: NASA launches the Viking 1 planetary probe toward Mars. | ||1975 – Viking program: NASA launches the Viking 1 planetary probe toward Mars. | ||
||1977 – Voyager program: NASA launches the Voyager 2 spacecraft. | ||1977 – Voyager program: NASA launches the Voyager 2 spacecraft. | ||
||2001 – Fred Hoyle, English astronomer and author (b. 1915) | |||
</gallery> | </gallery> | ||
Revision as of 17:34, 26 June 2017
1923: Miniaturized version of John Ambrose Fleming delivers lecture from within Fleming tube.