Template:Selected anniversaries/July 21: Difference between revisions
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||1925: Giovanni Frattini dies ... mathematician, noted for his contributions to group theory. | ||1925: Giovanni Frattini dies ... mathematician, noted for his contributions to group theory. | ||
||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) | |||
||1959: Edmund Newton Harvey dies ... zoologist. He was acknowledged as one of the leading authorities on bioluminescence. | ||1959: Edmund Newton Harvey dies ... zoologist. He was acknowledged as one of the leading authorities on bioluminescence. | ||
Revision as of 13:38, 17 September 2018
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.