Template:Selected anniversaries/August 20: Difference between revisions

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||1791: Francesco Zantedeschi born ... priest and physicist. While carrying out researches on the solar spectrum, Zantedeschi was among the first to recognize the marked absorption by the atmosphere of red, yellow, and green light. Pic.
||1791: Francesco Zantedeschi born ... priest and physicist. While carrying out researches on the solar spectrum, Zantedeschi was among the first to recognize the marked absorption by the atmosphere of red, yellow, and green light. Pic.
File:Francesco Zantedeschi.jpg|link=Francesco Zantedeschi (nonfiction)|1797: Physicist and priest [[Francesco Zantedeschi (nonfiction)|Francesco Zantedeschi]] born. Zantedeschi will be among the first to recognize the marked absorption by the atmosphere of red, yellow, and green light. He will also think that he detected, in 1838, a magnetic action on steel needles by ultraviolet light, anticipating later discoveries connecting light and magnetism.


||1831: Eduard Suess born ... geologist who helped lay the basis for paleogeography and tectonics (the study of the architecture and evolution of the Earth's outer rocky shell). He was an authority on structural geology, especially of mountains, and postulated the existence of the giant land mass Gondwanaland. Pic.
||1831: Eduard Suess born ... geologist who helped lay the basis for paleogeography and tectonics (the study of the architecture and evolution of the Earth's outer rocky shell). He was an authority on structural geology, especially of mountains, and postulated the existence of the giant land mass Gondwanaland. Pic.

Revision as of 06:16, 28 March 2019

  • 1672: Mathematician and politician Johan de Witt dies in a riot. The rioters will partially eat his body.

    1672: Mathematician and politician Johan de Witt dies in a riot. The rioters will partially eat his body.

  • 1797: Physicist and priest Francesco Zantedeschi born. Zantedeschi will be among the first to recognize the marked absorption by the atmosphere of red, yellow, and green light. He will also think that he detected, in 1838, a magnetic action on steel needles by ultraviolet light, anticipating later discoveries connecting light and magnetism.

    1797: Physicist and priest Francesco Zantedeschi born. Zantedeschi will be among the first to recognize the marked absorption by the atmosphere of red, yellow, and green light. He will also think that he detected, in 1838, a magnetic action on steel needles by ultraviolet light, anticipating later discoveries connecting light and magnetism.

  • 1911: The first cable message sent around the world from the U.S. by commercial telegraph was transmitted from New York City. It read “This message sent around the world,” left the New York Times building at 7:00 pm and was received at 7:16 pm after travelling nearly 29,000 miles through 16 relays via the Azores, Gibraltar, India, Phillipines, Midway, Guam, Hawaii and San Francisco.

    1911: The first cable message sent around the world from the U.S. by commercial telegraph was transmitted from New York City. It read “This message sent around the world,” left the New York Times building at 7:00 pm and was received at 7:16 pm after travelling nearly 29,000 miles through 16 relays via the Azores, Gibraltar, India, Phillipines, Midway, Guam, Hawaii and San Francisco.

  • 1912: Thomas Edison receives U.S. patent No. 1036470 for a “Phonographic Apparatus,” and No. 1036471 for a “Storage Battery.”

    1912: Thomas Edison receives U.S. patent No. 1036470 for a “Phonographic Apparatus,” and No. 1036471 for a “Storage Battery.”

  • 1923: Miniaturized version of John Ambrose Fleming delivers lecture from within Fleming tube.

    1923: Miniaturized version of John Ambrose Fleming delivers lecture from within Fleming tube.

  • 1942: The first visible quantity of a plutonium compound, plutonium(IV) iodate, is isolated by nuclear chemists Burris Cunningham and Louis Werner.

    1942: The first visible quantity of a plutonium compound, plutonium(IV) iodate, is isolated by nuclear chemists Burris Cunningham and Louis Werner.

  • 1961: Physicist and academic Percy Williams Bridgman dies. He won the 1946 Nobel Prize in Physics for his work on the physics of high pressures.

    1961: Physicist and academic Percy Williams Bridgman dies. He won the 1946 Nobel Prize in Physics for his work on the physics of high pressures.

  • 1962: Mathematician and crime-fighter Alice Beta publishes new class of Gnomon algorithm functions which detect and prevent crimes against mathematical constants.

    1962: Mathematician and crime-fighter Alice Beta publishes new class of Gnomon algorithm functions which detect and prevent crimes against mathematical constants.

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