Template:Selected anniversaries/July 22: Difference between revisions
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||1711: Georg Wilhelm Richmann born ... physicist and academic. He proved that thunder clouds contain electric charge. Pic. | ||1711: Georg Wilhelm Richmann born ... physicist and academic. He proved that thunder clouds contain electric charge. Pic. | ||
||1755: Gaspard de Prony born ... mathematician and engineer. | ||1755: Gaspard de Prony born ... mathematician and engineer, worked on hydraulics. Pic. | ||
||1784: Friedrich Bessel born ... mathematician and astronomer. Pic. | ||1784: Friedrich Bessel born ... mathematician and astronomer. Pic. | ||
Revision as of 07:16, 6 October 2019
1826: Priest, mathematician, and astronomer Giuseppe Piazzi dies. He discovered the 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.
2016: Signed first edition of Spiral sells for an undisclosed amount to "a prominent mathematician and long-time resident of New Minneapolis, Canada."