Template:Selected anniversaries/April 7: Difference between revisions

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File:Hasan Tahsini.jpg|link=Hasan Tahsini (nonfiction)|1811: Astronomer, mathematician, and philosopher [[Hasan Tahsini (nonfiction)|Hasan Tahsini]] born. He will become one of the most prominent scholars of the Ottoman Empire of the 19th century.
File:Hasan Tahsini.jpg|link=Hasan Tahsini (nonfiction)|1811: Astronomer, mathematician, and philosopher [[Hasan Tahsini (nonfiction)|Hasan Tahsini]] born. He will become one of the most prominent scholars of the Ottoman Empire of the 19th century.


||1823 – Jacques Charles, French physicist and mathematician (b. 1746)
||1823 – Jacques Charles, French physicist and mathematician (b. 1746). Pic.


||1827 – John Walker, an English chemist, sells the first friction match that he had invented the previous year.
||1827 – John Walker, an English chemist, sells the first friction match that he had invented the previous year.
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File:Ernst_Ruhmer,_Technical_World_cover_(1905).jpg|link=Ernst Ruhmer (nonfiction)|1860: Physicist and crime-fighter [[Ernst Ruhmer (nonfiction)|Ernst Ruhmer]] invents a camera which uses the light-sensitivity properties of selenium to record images from past and future events. This type of camera is popular with math photographers, notably [[Cantor Parabola]].
File:Ernst_Ruhmer,_Technical_World_cover_(1905).jpg|link=Ernst Ruhmer (nonfiction)|1860: Physicist and crime-fighter [[Ernst Ruhmer (nonfiction)|Ernst Ruhmer]] invents a camera which uses the light-sensitivity properties of selenium to record images from past and future events. This type of camera is popular with math photographers, notably [[Cantor Parabola]].


||Erik Ivar Fredholm (b. 7 April 1866) was a Swedish mathematician whose work on integral equations and operator theory foreshadowed the theory of Hilbert spaces. Pic.
File:Erik Ivar Fredholm.jpg|link=Erik Ivar Fredholm (nonfiction)|1866: Mathematician [[Erik Ivar Fredholm (nonfiction)|Erik Ivar Fredholm]] born. He will introduce and analyze a class of integral equations now called Fredholm equations. Fredholm's work on integral equations and operator theory will anticipate the theory of Hilbert spaces.  


File:Niles Cartouchian.jpg|link=Niles Cartouchian|1867: Gem detective [[Niles Cartouchian]] works with [[Hasan Tahsini (nonfiction)|Hasan Tahsini]] to recover stolen shipment of [[Time crystal (nonfiction)|time crystals (nonfiction)]].
File:Niles Cartouchian.jpg|link=Niles Cartouchian|1867: Gem detective [[Niles Cartouchian]] works with [[Hasan Tahsini (nonfiction)|Hasan Tahsini]] to recover stolen shipment of [[Time crystal (nonfiction)|time crystals (nonfiction)]].

Revision as of 15:32, 6 April 2018

  • 1761: Mathematician, philosopher, and minister Thomas Bayes dies. He is remembered for having formulated a specific case of the theorem that bears his name: Bayes' theorem.

    1761: Mathematician, philosopher, and minister Thomas Bayes dies. He is remembered for having formulated a specific case of the theorem that bears his name: Bayes' theorem.

  • 1789: Mathematician and physicist Joseph Fourier uses early version of Fourier series analysis to detect and prevent crimes against mathematical constants.

    1789: Mathematician and physicist Joseph Fourier uses early version of Fourier series analysis to detect and prevent crimes against mathematical constants.

  • 1811: Astronomer, mathematician, and philosopher Hasan Tahsini born. He will become one of the most prominent scholars of the Ottoman Empire of the 19th century.

    1811: Astronomer, mathematician, and philosopher Hasan Tahsini born. He will become one of the most prominent scholars of the Ottoman Empire of the 19th century.

  • 1860: Physicist and crime-fighter Ernst Ruhmer invents a camera which uses the light-sensitivity properties of selenium to record images from past and future events. This type of camera is popular with math photographers, notably Cantor Parabola.

    1860: Physicist and crime-fighter Ernst Ruhmer invents a camera which uses the light-sensitivity properties of selenium to record images from past and future events. This type of camera is popular with math photographers, notably Cantor Parabola.

  • 1866: Mathematician Erik Ivar Fredholm born. He will introduce and analyze a class of integral equations now called Fredholm equations. Fredholm's work on integral equations and operator theory will anticipate the theory of Hilbert spaces.

    1866: Mathematician Erik Ivar Fredholm born. He will introduce and analyze a class of integral equations now called Fredholm equations. Fredholm's work on integral equations and operator theory will anticipate the theory of Hilbert spaces.

  • 1867: Gem detective Niles Cartouchian works with Hasan Tahsini to recover stolen shipment of time crystals (nonfiction).

    1867: Gem detective Niles Cartouchian works with Hasan Tahsini to recover stolen shipment of time crystals (nonfiction).

  • 1889: Mathematician Paul David Gustav du Bois-Reymond dies. He worked on the theory of functions and in mathematical physics.

    1889: Mathematician Paul David Gustav du Bois-Reymond dies. He worked on the theory of functions and in mathematical physics.

  • 1899: Physicist and academic Petrus Leonardus Rijke dies. He explored the physics of electricity, and is known for the Rijke tube (which turns heat into sound, by creating a self-amplifying standing wave).

    1899: Physicist and academic Petrus Leonardus Rijke dies. He explored the physics of electricity, and is known for the Rijke tube (which turns heat into sound, by creating a self-amplifying standing wave).

  • 1995: Math photographer Cantor Parabola takes a series of photographs which capture temporal superimpositions from physicist and academic Petrus Leonardus Rijke in the form of a self-amplifying standing wave.

    1995: Math photographer Cantor Parabola takes a series of photographs which capture temporal superimpositions from physicist and academic Petrus Leonardus Rijke in the form of a self-amplifying standing wave.

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