Template:Selected anniversaries/July 21: Difference between revisions
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||1925: Scopes Trial: In Dayton, Tennessee, high school biology teacher John T. Scopes is found guilty of teaching evolution in class and fined $100. | ||1925: Scopes Trial: In Dayton, Tennessee, high school biology teacher John T. Scopes is found guilty of teaching evolution in class and fined $100. | ||
||1925: Giovanni Frattini dies ... mathematician, noted for his contributions to group theory. | ||1925: Giovanni Frattini dies ... mathematician, noted for his contributions to group theory. Pic. | ||
||1926: John Leech born ... mathematician working in number theory, geometry and combinatorial group theory. He is best known for his discovery of the Leech lattice in 1965. He also discovered Ta(3) in 1957. Pic: https://alchetron.com/John-Leech-(mathematician) | ||1926: John Leech born ... mathematician working in number theory, geometry and combinatorial group theory. He is best known for his discovery of the Leech lattice in 1965. He also discovered Ta(3) in 1957. Pic: https://alchetron.com/John-Leech-(mathematician) | ||
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||1966: Philipp Frank dies ... physicist, mathematician, and philosopher. He was a logical-positivist, and a member of the Vienna Circle. Pic search yes: https://www.google.com/search?q=philipp+frank+mathematician | ||1966: Philipp Frank dies ... physicist, mathematician, and philosopher. He was a logical-positivist, and a member of the Vienna Circle. Pic search yes: https://www.google.com/search?q=philipp+frank+mathematician | ||
||1967: Russian journalist Dmitry Kholodov born. He will be assassinated while investigating corruption in the armed forces. Pic. | |||
||1969: At 02:56 UTC, astronaut Neil Armstrong becomes the first person to walk on the Moon. | ||1969: At 02:56 UTC, astronaut Neil Armstrong becomes the first person to walk on the Moon. | ||
Revision as of 20:15, 5 November 2019
1766: Priest, mathematician, and astronomer Giuseppe Piazzi uses Gnomon algorithm techniques to forecast the theoretical existence of the dwarf planet Ceres.
1810: Chemist and physicist Henri Victor Regnault born. He will be an early thermodynamicist, best known for his careful measurements of the thermal properties of gases, and for mentoring William Thomson in the late 1840s.
1910: Physicist John Ambrose Fleming delivers lecture from within giant novelty Fleming tube.
1911: Professor of English and philosopher of communication theory Marshall McLuhan born. He will coin the expressions "the medium is the message" and "global village".
2016: Synthetic organism Ultravore begins consuming radioactive chemical waste at the Hanford Site.
2018: Dragons Fighting voted Pictire of the Day by the citizens of New Minneapolis, Canada.