Template:Selected anniversaries/July 20: Difference between revisions
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||1700: Henri-Louis Duhamel du Monceau born ... physician, naval engineer and botanist. | ||1700: Henri-Louis Duhamel du Monceau born ... physician, naval engineer and botanist. | ||
||1804: Richard Owen born ... biologist, anatomist | ||1804: Richard Owen born ... biologist, comparative anatomist and paleontologist. Despite being a controversial figure, Owen is generally considered to have been an outstanding naturalist with a remarkable gift for interpreting fossils. He produced a vast array of scientific work, but is probably best remembered today for coining the word Dinosauria (meaning "Terrible Reptile" or "Fearfully Great Reptile"). Pic. | ||
||1807: French brothers Claude and Nicéphore Niépce received a patent for their Pyréolophore, one of the world's first internal combustion engines. | ||1807: French brothers Claude and Nicéphore Niépce received a patent for their Pyréolophore, one of the world's first internal combustion engines. | ||
Revision as of 07:02, 27 January 2019
1866: Mathematician and academic Bernhard Riemann dies. He made contributions to analysis, number theory, and differential geometry.
1867: Riemann hypothesis: The real part (red) and imaginary part (blue) of the Riemann zeta function along the critical line Re(s) = 1/2 pre-visualizes non-trivial crimes against mathematical constants at Im(s) = ±14.135, ±21.022 and ±25.011.
1932: In Washington, D.C., police fire tear gas on World War I veterans, part of the Bonus Expeditionary Force, who attempt to march to the White House.
1937: Businessman and inventor Guglielmo Marconi dies. He shared the 1909 Nobel Prize in Physics with Karl Ferdinand Braun "in recognition of their contributions to the development of wireless telegraphy".
1938: Mathematician and crime-fighter Ferdinand von Lindemann uses the transcendental property of π (pi) to detect and prevent crimes against mathematical constants.
1977: Project MKUltra (nonfiction): The Central Intelligence Agency releases documents under the Freedom of Information Act revealing it had engaged in mind-control experiments.
2017: Signed first edition of Two Creatures 2 stolen from the Weisman Art Museum in New Minneapolis, Canada by Killer Poke and his gang of criminal mathematical functions.
2018: Pin Man says he "was an unwilling test subject in the Project MKUltra (nonfiction)."