Template:Selected anniversaries/August 4: Difference between revisions
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File:John Venn.jpg|link=John Venn (nonfiction)|1834: Mathematician and philosopher [[John Venn (nonfiction)|John Venn]] born. He will invent the Venn diagram, now widely used set theory, probability, logic, statistics, and computer science. | File:John Venn.jpg|link=John Venn (nonfiction)|1834: Mathematician and philosopher [[John Venn (nonfiction)|John Venn]] born. He will invent the Venn diagram, now widely used set theory, probability, logic, statistics, and computer science. | ||
||Konstantin Sergeevich Mereschkowski (Russian: Константи́н Серге́евич Мережко́вский; b. 4 August 1855 [O.S. 23 July]) was a prominent Russian biologist and botanist, active mainly around Kazan, whose research on lichens led him to propose the theory of symbiogenesis. | |||
||1912 – Aleksandr Danilovich Aleksandrov, Russian mathematician, physicist, and mountaineer (d. 1999) | ||1912 – Aleksandr Danilovich Aleksandrov, Russian mathematician, physicist, and mountaineer (d. 1999) | ||
Revision as of 20:50, 15 August 2017
1805: Physicist, astronomer, and mathematician William Rowan Hamilton born. He will make important contributions to classical mechanics, optics, and algebra, inventing the quaternion.
1833: Physicist and mathematician André-Marie Ampère uses principles of electromagnetism, which he referred to as "electrodynamics", to detect and prevent crimes against mathematical constants.
1834: Mathematician and philosopher John Venn born. He will invent the Venn diagram, now widely used set theory, probability, logic, statistics, and computer science.
2016: The Shovel depicts The Custodian in the act of reversing contract violations by Egon Rhodomunde and Baron Zersetzung.
2017: Quaternion multiplication table sells for five hundred thousand dollars.