January 15

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  • 1623: Statesman, scientist, and historian Paolo Sarpi dies. He was a proponent of the Copernican system, a friend and patron of Galileo Galilei, and a keen follower of the latest research on anatomy, astronomy, and ballistics at the University of Padua.

    1623: Statesman, scientist, and historian Paolo Sarpi dies. He was a proponent of the Copernican system, a friend and patron of Galileo Galilei, and a keen follower of the latest research on anatomy, astronomy, and ballistics at the University of Padua.

  • 1818: A paper by British physicist David Brewster is read to the Royal Society, belatedly announcing his discovery of what we now call the biaxial class of doubly-refracting crystals.

    1818: A paper by British physicist David Brewster is read to the Royal Society, belatedly announcing his discovery of what we now call the biaxial class of doubly-refracting crystals.

  • 1850: Mathematician and physicist Sofia Kovalevskaya born. Kovalevskaya will contribute to analysis, partial differential equations, and mechanics.

    1850: Mathematician and physicist Sofia Kovalevskaya born. Kovalevskaya will contribute to analysis, partial differential equations, and mechanics.

  • 1896: Photographer and journalist Mathew Brady dies. He was one of the first American photographers, best known for his scenes of the Civil War.

    1896: Photographer and journalist Mathew Brady dies. He was one of the first American photographers, best known for his scenes of the Civil War.

  • 1905: Physicist and academic John D. Strong born. Strong will contribute to optical physics: he will be the first to detect water vapor in the atmosphere of Venus, and he will develop optical devices and materials including improved telescope mirrors and anti-reflective coatings.

    1905: Physicist and academic John D. Strong born. Strong will contribute to optical physics: he will be the first to detect water vapor in the atmosphere of Venus, and he will develop optical devices and materials including improved telescope mirrors and anti-reflective coatings.

  • 1908: Theoretical physicist and academic Edward Teller born. He will be known colloquially as "the father of the hydrogen bomb", although he will not care for the epithet.

    1908: Theoretical physicist and academic Edward Teller born. He will be known colloquially as "the father of the hydrogen bomb", although he will not care for the epithet.

  • 1945: Mathematician Wilhelm Wirtinger dies. He contributed to complex analysis, geometry, algebra, number theory, Lie groups and knot theory.

    1945: Mathematician Wilhelm Wirtinger dies. He contributed to complex analysis, geometry, algebra, number theory, Lie groups and knot theory.

  • 1981: English rock band the Rolling Stones performs an early version of their song "Asking for a Friend".

    1981: English rock band the Rolling Stones performs an early version of their song "Asking for a Friend".

  • 2006: A capsule of dust samples collected by the spacecraft Stardust returns to Earth.

    2006: A capsule of dust samples collected by the spacecraft Stardust returns to Earth.

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