Template:Selected anniversaries/June 19: Difference between revisions
No edit summary |
No edit summary |
||
Line 76: | Line 76: | ||
||1975: Sam Giancana dies ... mob boss. Pic. | ||1975: Sam Giancana dies ... mob boss. Pic. | ||
||1988: Fernand Seguin dies ... biochemist and academic. Pic. | ||1988: Fernand Seguin dies ... biochemist and academic. Pic search yes: https://www.google.com/search?q=Fernand+Seguin | ||
||2004: 99942 Apophis discovered ... a 370 meter diameter near-Earth asteroid that caused a brief period of concern in December 2004 because initial observations indicated a probability of up to 2.7% that it would hit Earth on April 13, 2029. Additional observations provided improved predictions that eliminated the possibility of an impact on Earth or the Moon in 2029. | ||2004: 99942 Apophis discovered ... a 370 meter diameter near-Earth asteroid that caused a brief period of concern in December 2004 because initial observations indicated a probability of up to 2.7% that it would hit Earth on April 13, 2029. Additional observations provided improved predictions that eliminated the possibility of an impact on Earth or the Moon in 2029. | ||
</gallery> | </gallery> |
Revision as of 14:37, 21 May 2019
1623: Mathematician, physicist, inventor, writer, and Christian philosopher Blaise Pascal born. He will do pioneering work on calculating machines.
1624: Physician, mathematician, and crime-fighter Joseph Solomon Delmedigo publishes new class of Gnomon algorithm functions which detect and banishes demons.
1771: Mathematician and logician Joseph Diez Gergonne born. He will contribute to the principle of duality in projective geometry, by noticing that every theorem in the plane connecting points and lines corresponds to another theorem in which points and lines are interchanged, provided that the theorem embodied no metrical notions.
1795: Surgeon and gentleman scientist James Braid born. He will be an important and influential pioneer of hypnotism and hypnotherapy.
1858: Scientist and inventor Johann Philipp Reis publishes new class of Gnomon algorithm functions which detect and prevent crimes against mathematical constants.