Template:Selected anniversaries/July 22: Difference between revisions
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||1755: Gaspard de Prony born ... mathematician and engineer, worked on hydraulics. Pic. | ||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. | ||
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File:Sir Sandford Fleming.jpg|link=Sandford Fleming (nonfiction)|1827: Engineer and inventor [[Sandford Fleming (nonfiction)|Sandford Fleming]] dies. He proposed worldwide standard time zones. | File:Sir Sandford Fleming.jpg|link=Sandford Fleming (nonfiction)|1827: Engineer and inventor [[Sandford Fleming (nonfiction)|Sandford Fleming]] dies. He proposed worldwide standard time zones. | ||
File:Capture of the Enchantress by the US Albatross.jpg|1861: Capture of the Enchantress by the US Albatross. | |||
||1869: John A. Roebling dies ... engineer, designed the Brooklyn Bridge. Pic. | ||1869: John A. Roebling dies ... engineer, designed the Brooklyn Bridge. Pic. | ||
Revision as of 06:54, 13 December 2020
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.
1861: Capture of the Enchantress by the US Albatross.
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."
