Template:Selected anniversaries/July 20: Difference between revisions
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||1977: The Central Intelligence Agency releases documents under the Freedom of Information Act revealing it had engaged in mind-control experiments | ||1977: The Central Intelligence Agency releases documents under the Freedom of Information Act revealing it had engaged in mind-control experiments | ||
||1977: Fritz Joachim Weyl dies ... mathematician. | ||1977: Fritz Joachim Weyl dies ... mathematician. Pic. | ||
||1997: Eric Charles Milner dies ... mathematician who worked mainly in combinatorial set theory. He is also known for the Milner–Rado paradox. No pic online. | |||
File:MKUltra proposal.jpg|link=Project MKUltra (nonfiction)|1977: [[Project MKUltra (nonfiction)]]: The Central Intelligence Agency releases documents under the Freedom of Information Act revealing it had engaged in mind-control experiments. | File:MKUltra proposal.jpg|link=Project MKUltra (nonfiction)|1977: [[Project MKUltra (nonfiction)]]: The Central Intelligence Agency releases documents under the Freedom of Information Act revealing it had engaged in mind-control experiments. | ||
||1984: Gabriel Andrew Dirac dies ... mathematician who mainly worked in graph theory. He stated a sufficient condition for a graph to contain a Hamiltonian circuit. In 1951 he conjectured that n points in the plane, not all collinear, must span at least [n/2] two-point lines, where [x] is the largest integer not exceeding x. This conjecture is still open. | ||1984: Gabriel Andrew Dirac dies ... mathematician who mainly worked in graph theory. He stated a sufficient condition for a graph to contain a Hamiltonian circuit. In 1951 he conjectured that n points in the plane, not all collinear, must span at least [n/2] two-point lines, where [x] is the largest integer not exceeding x. This conjecture is still open. Pic search: https://www.google.com/search?q=gabriel+andrew+dirac | ||
||1989: Valentine "Valya" Bargmann dies ... mathematician and theoretical physicist. | ||1989: Valentine "Valya" Bargmann dies ... mathematician and theoretical physicist. Pic. | ||
||2006: Karl Longin Zeller dies ... mathematician and computer scientist who worked in numerical analysis and approximation theory. He is the namesake of Zeller operators. Zeller was drafted into the German army, and lost his right arm on the Soviet front of World War II. He earned his Ph.D. from the University of Tübingen in 1950, under the supervision of Konrad Knopp and Erich Kamke, and remained at Tübingen for most of his career as a professor and as director of the computer center. He left Tübingen in 1959 for a professorship in Stuttgart but returned to Tübingen in 1960 with a personal chair in "the mathematics of supercomputer facilities" (German: Mathematik der Hochleistungsrechenanlagen), making him one of the founders of computer science in Germany. | ||2006: Karl Longin Zeller dies ... mathematician and computer scientist who worked in numerical analysis and approximation theory. He is the namesake of Zeller operators. Zeller was drafted into the German army, and lost his right arm on the Soviet front of World War II. He earned his Ph.D. from the University of Tübingen in 1950, under the supervision of Konrad Knopp and Erich Kamke, and remained at Tübingen for most of his career as a professor and as director of the computer center. He left Tübingen in 1959 for a professorship in Stuttgart but returned to Tübingen in 1960 with a personal chair in "the mathematics of supercomputer facilities" (German: Mathematik der Hochleistungsrechenanlagen), making him one of the founders of computer science in Germany. | ||
Revision as of 15:46, 22 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)."