Template:Selected anniversaries/July 22: Difference between revisions
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File:Reginald Fessenden.jpg|link=Reginald Fessenden (nonfiction)|1932: Inventor [[Reginald Fessenden (nonfiction)|Reginald Fessenden]] dies. He performed pioneering experiments in radio, including the use of continuous waves and the early—and possibly the first—radio transmissions of voice and music. | File:Reginald Fessenden.jpg|link=Reginald Fessenden (nonfiction)|1932: Inventor [[Reginald Fessenden (nonfiction)|Reginald Fessenden]] dies. He performed pioneering experiments in radio, including the use of continuous waves and the early—and possibly the first—radio transmissions of voice and music. | ||
||John Robert Stallings Jr. (b. July 22, 1935) was a mathematician known for his seminal contributions to geometric group theory and 3-manifold topology. Pic. | |||
||Ernest William Brown FRS (d. 22 July 1938) was an English mathematician and astronomer, who spent the majority of his career working in the United States and became a naturalised American citizen in 1923. His life's work was the study of the Moon's motion (lunar theory) and the compilation of extremely accurate lunar tables. He also studied the motion of the planets and calculated the orbits of Trojan asteroids. | ||Ernest William Brown FRS (d. 22 July 1938) was an English mathematician and astronomer, who spent the majority of his career working in the United States and became a naturalised American citizen in 1923. His life's work was the study of the Moon's motion (lunar theory) and the compilation of extremely accurate lunar tables. He also studied the motion of the planets and calculated the orbits of Trojan asteroids. | ||
Revision as of 09:29, 1 April 2018
1826: Priest, mathematician, and astronomer Giuseppe Piazzi dies. He discovered dwarf planet Ceres.
1827: Gem detective and astronomer Niles Cartouchian discovers time crystals on the dwarf planet Ceres.
1827: Engineer and inventor Sandford Fleming dies. He proposed worldwide standard time zones.
1932: Inventor Reginald Fessenden dies. He performed pioneering experiments in radio, including the use of continuous waves and the early—and possibly the first—radio transmissions of voice and music.
1962: Engineer, pilot, and alleged time-traveller Henrietta Bolt tries to warn NASA that Mariner 1 has been targeted by math criminals.
1962: Mariner program: Mariner 1 spacecraft flies erratically several minutes after launch and has to be destroyed.
2017: Advances in zero-knowledge proof theory "are central to the problem of mathematical reliability," says mathematician and crime-fighter Alice Beta.