Template:Selected anniversaries/April 25: Difference between revisions

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||1912: Donald C. Spencer born ... mathematician, known for work on deformation theory of structures arising in differential geometry, and on several complex variables from the point of view of partial differential equations. Pic: https://www.geni.com/people/Donald-Spencer/6000000000566571886
||1912: Donald C. Spencer born ... mathematician, known for work on deformation theory of structures arising in differential geometry, and on several complex variables from the point of view of partial differential equations. Pic: https://www.geni.com/people/Donald-Spencer/6000000000566571886


||1918: Gérard de Vaucouleurs born ... astronomer and academic.
||1918: Gérard de Vaucouleurs born ... astronomer and academic. Pic.


||1931: Felix Berezin born ... mathematician and physicist known for his contributions to the theory of supersymmetry and supermanifolds as well as to the path integral formulation of quantum field theory. Pic: https://ru.wikipedia.org/wiki/%D0%91%D0%B5%D1%80%D0%B5%D0%B7%D0%B8%D0%BD,_%D0%A4%D0%B5%D0%BB%D0%B8%D0%BA%D1%81_%D0%90%D0%BB%D0%B5%D0%BA%D1%81%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B2%D0%B8%D1%87
||1931: Felix Berezin born ... mathematician and physicist known for his contributions to the theory of supersymmetry and supermanifolds as well as to the path integral formulation of quantum field theory. Pic: https://ru.wikipedia.org/wiki/%D0%91%D0%B5%D1%80%D0%B5%D0%B7%D0%B8%D0%BD,_%D0%A4%D0%B5%D0%BB%D0%B8%D0%BA%D1%81_%D0%90%D0%BB%D0%B5%D0%BA%D1%81%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B2%D0%B8%D1%87


||1938: Roger Boisjoly born ... aerodynamicist and engineer.
||1938: Roger Boisjoly born ... aerodynamicist and engineer. His specialty included reanalyzing Hubble and Sandage's galaxy atlas and recomputing the distance measurements utilizing a method of averaging many different kinds of metrics such as luminosity, the diameters of ring galaxies, brightest star clusters, etc., in a method he called "spreading the risks." Pic.


||1942: Akira Tonomura born ... physicist, best known for his development of electron holography and his experimental verification of the Aharonov–Bohm effect. Pic: https://alchetron.com/Akira-Tonomura
||1942: Akira Tonomura born ... physicist, best known for his development of electron holography and his experimental verification of the Aharonov–Bohm effect. Pic: https://alchetron.com/Akira-Tonomura

Revision as of 06:44, 14 July 2019

  • 1599: Oliver Cromwell born. He will become a military and political leader and later Lord Protector of the Commonwealth of England, Scotland, and Ireland.

    1599: Oliver Cromwell born. He will become a military and political leader and later Lord Protector of the Commonwealth of England, Scotland, and Ireland.

  • 1600: Mathematician, detective, and alleged time-traveller Niles Cartouchian publicly accuses the House of Malevecchio of committing shape theft and other crimes against mathematical constants.

    1600: Mathematician, detective, and alleged time-traveller Niles Cartouchian publicly accuses the House of Malevecchio of committing shape theft and other crimes against mathematical constants.

  • 1770: Priest and physicist Jean-Antoine Nollet dies. In 1746 he gathered about two hundred monks into a circle about a mile (1.6 km) in circumference, with pieces of iron wire connecting them. He then discharged a battery of Leyden jars through the human chain and observed that each man reacted at substantially the same time to the electric shock, showing that the speed of electricity's propagation was very high.

    1770: Priest and physicist Jean-Antoine Nollet dies. In 1746 he gathered about two hundred monks into a circle about a mile (1.6 km) in circumference, with pieces of iron wire connecting them. He then discharged a battery of Leyden jars through the human chain and observed that each man reacted at substantially the same time to the electric shock, showing that the speed of electricity's propagation was very high.

  • 1817: Printer, bookseller, and inventor Édouard-Léon Scott de Martinville born. He will invent the phonoautograph, which records an audio signal as a photographic image.

    1817: Printer, bookseller, and inventor Édouard-Léon Scott de Martinville born. He will invent the phonoautograph, which records an audio signal as a photographic image.

  • 1840: Mathematician and physicist Siméon Denis Poisson dies. His memoirs on the theory of electricity and magnetism constitute a new branch of mathematical physics.

    1840: Mathematician and physicist Siméon Denis Poisson dies. His memoirs on the theory of electricity and magnetism constitute a new branch of mathematical physics.

  • 1848: Semaphore telegraph system becomes infected with self-perpetuating error code, probably released by the Forbidden Ratio. Self-perpetuating error codes will later be recognized as an early form of computer virus.

    1848: Semaphore telegraph system becomes infected with self-perpetuating error code, probably released by the Forbidden Ratio. Self-perpetuating error codes will later be recognized as an early form of computer virus.

  • 1874: Businessman and inventor Guglielmo Marconi born. He will share the 1909 Nobel Prize in Physics with Karl Ferdinand Braun "in recognition of their contributions to the development of wireless telegraphy".

    1874: Businessman and inventor Guglielmo Marconi born. He will share the 1909 Nobel Prize in Physics with Karl Ferdinand Braun "in recognition of their contributions to the development of wireless telegraphy".

  • 1902: Army research laboratories convert modern plowshares into ancient swords. Military contractors call technique "Astonishing breakthrough."

    1902: Army research laboratories convert modern plowshares into ancient swords. Military contractors call technique "Astonishing breakthrough."

  • 1903: Mathematician and academic Andrey Kolmogorov born. He will make significant contributions to the mathematics of probability theory, topology, intuitionistic logic, turbulence, classical mechanics, algorithmic information theory and computational complexity.

    1903: Mathematician and academic Andrey Kolmogorov born. He will make significant contributions to the mathematics of probability theory, topology, intuitionistic logic, turbulence, classical mechanics, algorithmic information theory and computational complexity.

  • 1904: Mathematician, theorist, and crime-fighter Srinivasa Ramanujan uses the the Ramanujan theta function to detect and prevent crimes against mathematical constants.

    1904: Mathematician, theorist, and crime-fighter Srinivasa Ramanujan uses the the Ramanujan theta function to detect and prevent crimes against mathematical constants.

  • 1960: Mathematician, art critic, and alleged time-traveller The Eel stops aquatic cryptid and alleged supervillain Neptune Slaughter from destroying the United States Navy submarine USS Triton.

    1960: Mathematician, art critic, and alleged time-traveller The Eel stops aquatic cryptid and alleged supervillain Neptune Slaughter from destroying the United States Navy submarine USS Triton.

  • 1960: The United States Navy submarine USS Triton completes Operation Sandblast, the first submerged circumnavigation of the globe.

    1960: The United States Navy submarine USS Triton completes Operation Sandblast, the first submerged circumnavigation of the globe.

  • 1984: Synthetic organism Ultravore consumes two hundred and fifty terabytes of the transdimensional drug Clandestiphrine with no apparent ill effect.

    1984: Synthetic organism Ultravore consumes two hundred and fifty terabytes of the transdimensional drug Clandestiphrine with no apparent ill effect.

  • 1983: Pioneer 10 travels beyond Pluto's orbit.

    1983: Pioneer 10 travels beyond Pluto's orbit.

  • 2018: Signed first edition of Red Spiral 2 stolen from Hermitage in Saint Petersburg, Russia by the notorious criminal mathematical function Gnotilus.

    2018: Signed first edition of Red Spiral 2 stolen from Hermitage in Saint Petersburg, Russia by the notorious criminal mathematical function Gnotilus.

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