Template:On This Day (nonfiction)/April 8

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  • 1461: Mathematician and astronomer Georg von Peuerbach dies. Peuerbach is remembered for his streamlined presentation of Ptolemaic astronomy in the Theoricae Novae Planetarum.

    1461: Mathematician and astronomer Georg von Peuerbach dies. Peuerbach is remembered for his streamlined presentation of Ptolemaic astronomy in the Theoricae Novae Planetarum.

  • 1541: Physician and archaeologist Michele Mercati born. Mercati will be one of the first scholars to recognize prehistoric stone tools as human-made rather than natural or mythologically created thunderstones.

    1541: Physician and archaeologist Michele Mercati born. Mercati will be one of the first scholars to recognize prehistoric stone tools as human-made rather than natural or mythologically created thunderstones.

  • 1732: Inventor, astronomer, mathematician, clockmaker, and surveyor David Rittenhouse born. Rittenhouse will become the first Director of the United States Mint, hand-striking the new nation's first coins.

    1732: Inventor, astronomer, mathematician, clockmaker, and surveyor David Rittenhouse born. Rittenhouse will become the first Director of the United States Mint, hand-striking the new nation's first coins.

  • 1803: Mathematician Louis François Antoine Arbogast dies. Arbogast was the first writer to separate the symbols of operation from those of quantity. He wrote on series and the derivatives known by his name.

    1803: Mathematician Louis François Antoine Arbogast dies. Arbogast was the first writer to separate the symbols of operation from those of quantity. He wrote on series and the derivatives known by his name.

  • 1859: Mathematician and philosopher Edmund Husserl born. Husserl will argue that transcendental consciousness sets the limits of all possible knowledge.

    1859: Mathematician and philosopher Edmund Husserl born. Husserl will argue that transcendental consciousness sets the limits of all possible knowledge.

  • 1903: Mathematician Marshall Harvey Stone born. Stone will contribute to real analysis, functional analysis, topology, and the study of Boolean algebra structures.

    1903: Mathematician Marshall Harvey Stone born. Stone will contribute to real analysis, functional analysis, topology, and the study of Boolean algebra structures.

  • 1904: Mystic and thrill-seeker Aleister Crowley transcribes the first chapter of The Book of the Law.

    1904: Mystic and thrill-seeker Aleister Crowley transcribes the first chapter of The Book of the Law.

  • 1911: Physicist Heike Kamerlingh Onnes, discoverer of superconductivity, makes a terse entry in his notebook: Kwik nagenoeg nul ("Mercury[’s resistance] practically zero [at 3 K].").

    1911: Physicist Heike Kamerlingh Onnes, discoverer of superconductivity, makes a terse entry in his notebook: Kwik nagenoeg nul ("Mercury[’s resistance] practically zero [at 3 K].").

  • 1913: Physicist Ernst Ruhmer dies. Ruhmer invented applications for the light-sensitivity properties of selenium, including wireless telephony using line-of-sight optical transmissions, sound-on-film audio recording, and television transmissions over wires.

    1913: Physicist Ernst Ruhmer dies. Ruhmer invented applications for the light-sensitivity properties of selenium, including wireless telephony using line-of-sight optical transmissions, sound-on-film audio recording, and television transmissions over wires.

  • 1940: Weapons engineer and army officer Karl Heinrich Emil Becker takes his own life. Becker promoted the integration of scientific research into military goals, notably advanced weapons design.

    1940: Weapons engineer and army officer Karl Heinrich Emil Becker takes his own life. Becker promoted the integration of scientific research into military goals, notably advanced weapons design.

  • 1959: A team of computer manufacturers, users, and university people led by Grace Hopper meets to discuss the creation of a new programming language that would be called COBOL.

    1959: A team of computer manufacturers, users, and university people led by Grace Hopper meets to discuss the creation of a new programming language that would be called COBOL.

  • 2008: Mathematician Graham Higman dies. In mathematics, Higman contributed to group theory. Higman, a conscientious objector, worked at the Meteorological Office in Northern Ireland and Gibraltar during the Second World War.

    2008: Mathematician Graham Higman dies. In mathematics, Higman contributed to group theory. Higman, a conscientious objector, worked at the Meteorological Office in Northern Ireland and Gibraltar during the Second World War.

  • 2017: Mathematician Donald Sarason dies. Sarason made fundamental advances in the areas of Hardy space theory and Vanishing mean oscillation (VMO).

    2017: Mathematician Donald Sarason dies. Sarason made fundamental advances in the areas of Hardy space theory and Vanishing mean oscillation (VMO).

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