Template:Selected anniversaries/April 22: Difference between revisions

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||1891 – Nicola Sacco, Italian-American anarchist (d. 1927)
||1891 – Nicola Sacco, Italian-American anarchist (d. 1927)


File:J. Robert Oppenheimer.jpg|link=J. Robert Oppenheimer (nonfiction)|1904: American physicist and academic [[J. Robert Oppenheimer (nonfiction)|J. Robert Oppenheimer]] born. His achievements in physics will include the Born–Oppenheimer approximation for molecular wavefunctions, work on the theory of electrons and positrons, the Oppenheimer–Phillips process in nuclear fusion, and the first prediction of quantum tunneling.
File:J. Robert Oppenheimer.jpg|link=J. Robert Oppenheimer (nonfiction)|1904: American physicist and academic [[J. Robert Oppenheimer (nonfiction)|J. Robert Oppenheimer]] born. His achievements in physics will include the Born–Oppenheimer approximation for molecular wavefunctions, and the first prediction of quantum tunneling.


||Stanisław Jaśkowski (b. April 22, 1906) was a Polish logician who made important contributions to proof theory and formal semantics. Jaśkowski is considered to be one of the founders of natural deduction, which he discovered independently of Gerhard Gentzen in the 1930s.
||Stanisław Jaśkowski (b. April 22, 1906) was a Polish logician who made important contributions to proof theory and formal semantics. Jaśkowski is considered to be one of the founders of natural deduction, which he discovered independently of Gerhard Gentzen in the 1930s.

Revision as of 17:15, 8 April 2018

  • 1592: Minister, scholar, astronomer, mathematician, cartographer, and scientific instrument maker Wilhelm Schickard born. He will design and build calculating machines, and invent techniques for producing improved maps.

    1592: Minister, scholar, astronomer, mathematician, cartographer, and scientific instrument maker Wilhelm Schickard born. He will design and build calculating machines, and invent techniques for producing improved maps.

  • 1904: American physicist and academic J. Robert Oppenheimer born. His achievements in physics will include the Born–Oppenheimer approximation for molecular wavefunctions, and the first prediction of quantum tunneling.

    1904: American physicist and academic J. Robert Oppenheimer born. His achievements in physics will include the Born–Oppenheimer approximation for molecular wavefunctions, and the first prediction of quantum tunneling.

  • 1977: Optical fiber is first used to carry live telephone traffic.

    1977: Optical fiber is first used to carry live telephone traffic.

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