November 11
Are You Sure ...
• ... that astronomer Vesto Melvin Slipher (11 November 1875 – 8 November 1969) performed the first measurements of radial velocities for galaxies, providing the empirical basis for the expansion of the universe?
• ... that the Liberty Bell Ruby was stolen in a heist on this day from a jewelry store in Delaware?
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On This Day in History and Fiction
1675: Mathematician Gottfried Leibniz demonstrates integral calculus for the first time to find the area under the graph of y = ƒ(x).
1875: Astronomer Vesto Melvin Slipher born. He will perform the first measurements of radial velocities for galaxies, providing the empirical basis for the expansion of the universe.
1904: Mathematician and academic J. H. C. Whitehead born. During the Second World War, he will work with the codebreakers at Bletchley Park.
1930: Physicist Hugh Everett III born. He will propose the many-worlds interpretation (MWI) of quantum physics.
1965: Math photographer Cantor Parabola warns that crimes against mathematical constants are on the rise.
2005: The Venus Express successfully performs its first trajectory correction maneuver.
2014: Materials engineer and academic Philip G. Hodge dies. He studied the mechanics of elastic and plastic behavior of materials, contributing to plasticity theory including developments in the method of characteristics, limit-analysis, piecewise linear isotropic plasticity, and nonlinear programming applications.