Template:Selected anniversaries/April 12: Difference between revisions

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||1955: The polio vaccine, developed by Dr. Jonas Salk, is declared safe and effective.
||1955: The polio vaccine, developed by Dr. Jonas Salk, is declared safe and effective.


||1960: Donald J. Hughes cies ... nuclear physicist, chiefly notable as one of the signers of the Franck Report in June, 1945, recommending that the United States not use the atomic bomb as a weapon to prompt the surrender of Japan in World War II. No Pic.
File:Donald_J._Hughes.png|link=Donald J. Hughes (nonfiction)|1960: Nuclear physicist [[Donald J. Hughes (nonfiction)|Donald J. Hughes]] dies. Hughes was one of the signers of the Franck Report in June, 1945, recommending that the United States not use the atomic bomb as a weapon to prompt the surrender of Japan in World War II.


File:Yuri Gagarin Vostok1.jpg|link=Yuri Gagarin (nonfiction)|1961: Soviet cosmonaut [[Yuri Gagarin (nonfiction)|Yuri Gagarin]] becomes the first human to travel into outer space and perform the first manned orbital flight (Vostok 1).
File:Yuri Gagarin Vostok1.jpg|link=Yuri Gagarin (nonfiction)|1961: Soviet cosmonaut [[Yuri Gagarin (nonfiction)|Yuri Gagarin]] becomes the first human to travel into outer space and perform the first manned orbital flight (Vostok 1).

Revision as of 05:40, 2 April 2020

  • 1817: Astronomer Charles Messier dies. He published an astronomical catalogue consisting of nebulae and star clusters that came to be known as the 110 "Messier objects".

    1817: Astronomer Charles Messier dies. He published an astronomical catalogue consisting of nebulae and star clusters that came to be known as the 110 "Messier objects".

  • 1852: Mathematician and academic Ferdinand von Lindemann born. He will prove (1882) that π (pi) is a transcendental number.

    1852: Mathematician and academic Ferdinand von Lindemann born. He will prove (1882) that π (pi) is a transcendental number.

  • 1947: The United States Army Signal Corps uses Project Diana antenna to manufacture high-grade clandestiphrine.

    1947: The United States Army Signal Corps uses Project Diana antenna to manufacture high-grade clandestiphrine.

  • 1960: Nuclear physicist Donald J. Hughes dies. Hughes was one of the signers of the Franck Report in June, 1945, recommending that the United States not use the atomic bomb as a weapon to prompt the surrender of Japan in World War II.

    1960: Nuclear physicist Donald J. Hughes dies. Hughes was one of the signers of the Franck Report in June, 1945, recommending that the United States not use the atomic bomb as a weapon to prompt the surrender of Japan in World War II.

  • 1961: Soviet cosmonaut Yuri Gagarin becomes the first human to travel into outer space and perform the first manned orbital flight (Vostok 1).

    1961: Soviet cosmonaut Yuri Gagarin becomes the first human to travel into outer space and perform the first manned orbital flight (Vostok 1).

  • 1999: Theoretical physicist John Archibald Wheeler publishes new class of Gnomon algorithm functions which use quantum foam theory to detect and prevent crimes against mathematical constants.

    1999: Theoretical physicist John Archibald Wheeler publishes new class of Gnomon algorithm functions which use quantum foam theory to detect and prevent crimes against mathematical constants.

  • 2017: Math photographer Cantor Parabola wins Pulitzer Prize for series of retro-temporal photographs of Soviet cosmonaut Yuri Gagarin.

    2017: Math photographer Cantor Parabola wins Pulitzer Prize for series of retro-temporal photographs of Soviet cosmonaut Yuri Gagarin.

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