Template:Selected anniversaries/February 9: Difference between revisions

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||1883: Henry John Stephen Smith dies ... mathematician remembered for his work in elementary divisors, quadratic forms, and Smith–Minkowski–Siegel mass formula in number theory. Pic.
||1883: Henry John Stephen Smith dies ... mathematician remembered for his work in elementary divisors, quadratic forms, and Smith–Minkowski–Siegel mass formula in number theory. Pic.


|File:Red-Charter.jpg|link=Posthumous holography of H. P. Lovecraft|1889: Discovery of "Red Charter", the first known evidence of the [[posthumous holography of H. P. Lovecraft]].
File:Sofya_Kovalevskaya.jpg|link=Sofia Kovalevskaya (nonfiction)|1884: Mathematician, physicist, and [[APTO]] field engineer [[Sofia Kovalevskaya (nonfiction)|Sofia Kovalevskaya]] uses symmetric top in which two moments of inertia are equal, the third is half as large, and the center of gravity is located in the plane perpendicular to the symmetry axis (parallel to the plane of the two equal points) to defeat the the [[Forbidden ratio]] in single combat.  


||1895: Max Valier born ... rocketry pioneer. He helped found the German Verein für Raumschiffahrt (VfR - "Spaceflight Society") that would bring together many of the minds that would later make spaceflight a reality in the 20th century. Pic (drawing).
||1895: Max Valier born ... rocketry pioneer. He helped found the German Verein für Raumschiffahrt (VfR - "Spaceflight Society") that would bring together many of the minds that would later make spaceflight a reality in the 20th century. Pic (drawing).

Revision as of 11:02, 15 January 2020