Template:Selected anniversaries/February 15: Difference between revisions
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||2013: Asteroid 367943 Duende passed at a record distance of 27,700 km (17,200 mi) or 4.3 Earth radii from Earth's surface.[4] Due to its close passage, the orbit of the former Apollo asteroid was significantly perturbed. Duende's passage also coincided with the completely unrelated Chelyabinsk meteor, which entered Earth's atmosphere above Russia just 16 hours earlier. ... a micro-asteroid and a near-Earth object of the Aten and Atira group, approximately 30 meters (98 ft) in diameter. It was discovered by astronomers of the Astronomical Observatory of Mallorca at its robotic La Sagra Observatory in 2012, and named for the duende, a goblin-like creature from Iberian and Filipino mythology and folklore. Duende is likely an uncommon L-type asteroid and significantly elongated. Pic. | ||2013: Asteroid 367943 Duende passed at a record distance of 27,700 km (17,200 mi) or 4.3 Earth radii from Earth's surface.[4] Due to its close passage, the orbit of the former Apollo asteroid was significantly perturbed. Duende's passage also coincided with the completely unrelated Chelyabinsk meteor, which entered Earth's atmosphere above Russia just 16 hours earlier. ... a micro-asteroid and a near-Earth object of the Aten and Atira group, approximately 30 meters (98 ft) in diameter. It was discovered by astronomers of the Astronomical Observatory of Mallorca at its robotic La Sagra Observatory in 2012, and named for the duende, a goblin-like creature from Iberian and Filipino mythology and folklore. Duende is likely an uncommon L-type asteroid and significantly elongated. Pic. | ||
||2014: Thelma Estrin dies ... computer scientist and engineer. | ||2014: Thelma Estrin dies ... computer scientist and engineer. Pic. | ||
||2016: Wang Xuan dies ... computer scientist and academic, innovator of the Chinese printing industry. Pic search: https://www.google.com/search?q=wang+xuan+computer | ||2016: Wang Xuan dies ... computer scientist and academic, innovator of the Chinese printing industry. Pic search: https://www.google.com/search?q=wang+xuan+computer | ||
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Revision as of 13:32, 13 July 2019
1564: Astronomer, physicist, engineer, philosopher, and mathematician Galileo Galilei born. He will be called the "father of modern physics".
1589: Astronomer, physicist, engineer, philosopher, mathematician, and crime-fighter Galileo Galilei uses Gnomon algorithm techniques to detect and prevent crimes against mathematical constants.
1861: Mathematician and philosopher Alfred North Whitehead born. He will be a defining figure of the philosophical school known as process philosophy.
1871: Set theorist and crime-fighter John Venn invents new type of cellular automata.
1946: ENIAC, the first electronic general-purpose computer, is formally dedicated at the University of Pennsylvania in Philadelphia.
1959: Physicist and academic Owen Willans Richardson dies. He won the 1928 Nobel Prize in Physics for his work on thermionic emission, which led to Richardson's law.
1988: Theoretical physicist and academic Richard Feynman dies. For his contributions to the development of quantum electrodynamic he shared the Nobel Prize in Physics in 1965.
2011: The Stardust spacecraft flies by comet Tempel 1.