Template:Selected anniversaries/April 4: Difference between revisions

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||Charles Soret (died 4 April 1904) was a Swiss physicist and chemist. He is known for his work on thermodiffusion (the so-called Soret effect).
||Charles Soret (died 4 April 1904) was a Swiss physicist and chemist. He is known for his work on thermodiffusion (the so-called Soret effect).
||Carl Barnett Allendoerfer (b. April 4, 1911) was an American mathematician in the mid-twentieth century, known for his work in topology and mathematics education.


||1912 – Isaac K. Funk, American minister, lexicographer, and publisher, co-founded Funk & Wagnalls (b. 1839)
||1912 – Isaac K. Funk, American minister, lexicographer, and publisher, co-founded Funk & Wagnalls (b. 1839)

Revision as of 19:21, 6 December 2017

  • 1807: Astronomer, freemason, and writer Joseph Jérôme Lefrançois de Lalande dies. As a lecturer and writer Lalande helped popularize astronomy. His planetary tables were the best available up to the end of the 18th century.

    1807: Astronomer, freemason, and writer Joseph Jérôme Lefrançois de Lalande dies. As a lecturer and writer Lalande helped popularize astronomy. His planetary tables were the best available up to the end of the 18th century.

  • 1826: Electrical engineer Zénobe Gramme born. He will invent the first usefully powerful electric motor.

    1826: Electrical engineer Zénobe Gramme born. He will invent the first usefully powerful electric motor.

  • 1901: Charles Hermite publishes paper on number theory as deterrent to crimes against mathematical constants.

    1901: Charles Hermite publishes paper on number theory as deterrent to crimes against mathematical constants.

  • 1923: Mathematician and philosopher John Venn dies. He invented the Venn diagram, now widely used set theory, probability, logic, statistics, and computer science.

    1923: Mathematician and philosopher John Venn dies. He invented the Venn diagram, now widely used set theory, probability, logic, statistics, and computer science.

  • 1976: Engineer and theorist Harry Nyquist dies. He did early theoretical work on determining the bandwidth requirements for transmitting information, laying the foundations for later advances by Claude Shannon, which led to the development of information theory.

    1976: Engineer and theorist Harry Nyquist dies. He did early theoretical work on determining the bandwidth requirements for transmitting information, laying the foundations for later advances by Claude Shannon, which led to the development of information theory.

  • 1977: Dave the Gamer announces "buy one, get one free" sale on all lucky dice in the store.

    1977: Dave the Gamer announces "buy one, get one free" sale on all lucky dice in the store.

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