Template:Selected anniversaries/August 28: Difference between revisions
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||1993: The asteroid 243 Ida became the first found to have a moon when it was visited by NASA's Galileo probe. The asteroid 243 Ida and its newly-discovered moon, Dactyl was imaged by NASA's Galileo spacecraft, about 14 minutes before its closest approach (within 2,400-km or 1,500 miles) to the asteroid. Ida is about 52 km (32 mi) in length and is irregularly shaped. It shows numerous craters, including many degraded craters, indicating Ida's surface is older than previously thought. Dactyl is only about 1.4-km in diameter, and it is spectrally different from Ida data. The picture was released on 26 Mar 1994. Galileo had encountered the first asteroid - 951 Gaspra - on 29 Oct 1991. Galileo continued on its mission to study Jupiter, beginning its orbit of the planet on 7 Dec 1995. | ||1993: The asteroid 243 Ida became the first found to have a moon when it was visited by NASA's Galileo probe. The asteroid 243 Ida and its newly-discovered moon, Dactyl was imaged by NASA's Galileo spacecraft, about 14 minutes before its closest approach (within 2,400-km or 1,500 miles) to the asteroid. Ida is about 52 km (32 mi) in length and is irregularly shaped. It shows numerous craters, including many degraded craters, indicating Ida's surface is older than previously thought. Dactyl is only about 1.4-km in diameter, and it is spectrally different from Ida data. The picture was released on 26 Mar 1994. Galileo had encountered the first asteroid - 951 Gaspra - on 29 Oct 1991. Galileo continued on its mission to study Jupiter, beginning its orbit of the planet on 7 Dec 1995. | ||
||1995: Gerard A. "Gerry" Salton dies ... Professor of Computer Science at Cornell University. Salton was perhaps the leading computer scientist working in the field of information retrieval during his time, and "the father of Information Retrieval". His group at Cornell developed the SMART Information Retrieval System, which he initiated when he was at Harvard. Pic: http://www.cs.cornell.edu/Info/Department/Annual95/Faculty/Salton.html | |||
||2005: George Szekeres dies ... mathematician. He will discover the Szekeres snark, a snark with 50 vertices and 75 edges. Pic. | ||2005: George Szekeres dies ... mathematician. He will discover the Szekeres snark, a snark with 50 vertices and 75 edges. Pic. | ||
Revision as of 12:07, 30 September 2018
413 BC: A lunar eclipse caused panic among the sailors of the Athens fleet and thus affected the outcome of a battle in the Peloponnesian War. The Athenians were ready to move their forces from Syracuse when the Moon was eclipsed. The soldiers and sailors were frightened by this celestial omen and were reluctant to leave. Their commander, Nicias, consulted the soothsayers and postponed the departure for 27 days. This delay gave an advantage to their enemies, the Syracusans, who then defeated the entire Athenian fleet and army, and killed Nicias. https://en.wikipedia.org/wiki/Sicilian_Expedition
1801: Mathematician and philosopher Antoine Augustin Cournot born. He will introduce the ideas of functions and probability into economic analysis.
1802: Mathematician and engineer Gaspard Monge publishes new class of Gnomon algorithm functions, based on his pioneering work in differential geometry, which detect and prevent crimes against mathematical constants.
- C. Wright Mills.jpg
1916: Sociologist and author C. Wright Mills born. He will be published widely in popular and intellectual journals, advocating public and political engagement over disinterested observation.
1966: New study reveals that the Brainiac Explains lecture series is funded by a Brownian racket.