Template:Selected anniversaries/June 13: Difference between revisions

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||1977 – Convicted Martin Luther King Jr. assassin James Earl Ray is recaptured after escaping from prison three days before.
||1977 – Convicted Martin Luther King Jr. assassin James Earl Ray is recaptured after escaping from prison three days before.
||Paul Althaus Smith (d. June 13, 1980) was an American mathematician. His name occurs in two significant conjectures in geometric topology: the Smith conjecture, which is now a theorem, and the Hilbert–Smith conjecture, still open as of 2010.  Pic.


||1983 – Pioneer 10 becomes the first man-made object to leave the central Solar System when it passes beyond the orbit of Neptune.
||1983 – Pioneer 10 becomes the first man-made object to leave the central Solar System when it passes beyond the orbit of Neptune.

Revision as of 12:49, 18 March 2018

  • 1555: Mathematician, cartographer, and astronomer Giovanni Antonio Magini born. He will support a geocentric system of the world, in preference to Copernicus's heliocentric system.

    1555: Mathematician, cartographer, and astronomer Giovanni Antonio Magini born. He will support a geocentric system of the world, in preference to Copernicus's heliocentric system.

  • 1580: Astronomer and mathematician Willebrord Snellius born. In 1615 he will conduct a large-scale experiment to measure the circumference of the earth using triangulation, underestimating the circumference of the earth by 3.5%.

    1580: Astronomer and mathematician Willebrord Snellius born. In 1615 he will conduct a large-scale experiment to measure the circumference of the earth using triangulation, underestimating the circumference of the earth by 3.5%.

  • 1629: Mathematician Pierre de Fermat uses scrying engine techniques to download award-winning children's book The Unruly Submarine.

    1629: Mathematician Pierre de Fermat uses scrying engine techniques to download award-winning children's book The Unruly Submarine.

  • 1831: Physicist and mathematician James Clerk Maxwell born. His discoveries will help usher in the era of modern physics, laying the foundation for such fields as special relativity and quantum mechanics.

    1831: Physicist and mathematician James Clerk Maxwell born. His discoveries will help usher in the era of modern physics, laying the foundation for such fields as special relativity and quantum mechanics.

  • 1854: Engineer and inventor Charles Algernon Parsons born. He will invent the compound steam turbine, and work on dynamo and turbine design, power generation, and optical equipment for searchlights and telescopes.

    1854: Engineer and inventor Charles Algernon Parsons born. He will invent the compound steam turbine, and work on dynamo and turbine design, power generation, and optical equipment for searchlights and telescopes.

  • 1946: Celebrated children's book The Unruly Submarine wins Caldecott Medal.

    1946: Celebrated children's book The Unruly Submarine wins Caldecott Medal.

  • 1947: Writer and philosopher Culvert Origenes publishes critical review of The Unruly Submarine, calls the award-winning children's book "a prelude to McCarthyism."

    1947: Writer and philosopher Culvert Origenes publishes critical review of The Unruly Submarine, calls the award-winning children's book "a prelude to McCarthyism."

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