Template:Selected anniversaries/July 20: Difference between revisions
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File:Riemann critical line.png|link=Riemann hypothesis (nonfiction)|1867: [[Riemann hypothesis (nonfiction)|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. | File:Riemann critical line.png|link=Riemann hypothesis (nonfiction)|1867: [[Riemann hypothesis (nonfiction)|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. | ||
||Geneve Lucy Angela Shaffer (b. July 20, 1888) was a American realtor, lecturer and author. In 1909 she was touted by the San Francisco Call as "the first woman in the world to sail in a flying machine". | |||
|File:Mark Twain by Abdullah Frères, 1867.jpg|link=Mark Twain (nonfiction)|1889: [[Mark Twain (nonfiction)|Mark Twain]] alleges that [[Baron Zersetzung]] is "trafficking in [[Clandestiphrine]] and [[Extract of Radium]], to the detriment of clear and rational thought, relentless seeking to corrupt, usurp, and digest what remains of the Republic." | |File:Mark Twain by Abdullah Frères, 1867.jpg|link=Mark Twain (nonfiction)|1889: [[Mark Twain (nonfiction)|Mark Twain]] alleges that [[Baron Zersetzung]] is "trafficking in [[Clandestiphrine]] and [[Extract of Radium]], to the detriment of clear and rational thought, relentless seeking to corrupt, usurp, and digest what remains of the Republic." |
Revision as of 14:10, 4 September 2017
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.
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: Pin Man says he "was involved with Project MKUltra (nonfiction)."