Template:Selected anniversaries/January 19: Difference between revisions
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||1719: Joachim Tielke dies ... instrument maker. Pic search instruments: https://www.google.com/search?q=joachim+tielke | ||1719: Joachim Tielke dies ... instrument maker. Pic search instruments: https://www.google.com/search?q=joachim+tielke | ||
||1721: Jean-Philippe Baratier dies ... astronomer and scholar. A noted child prodigy of the 18th century, he published eleven works and authored a great quantity of unpublished manuscripts. Pic (attended by Athena!). | |||
||1747: Johann Elert Bode born ... astronomer known for his reformulation and popularisation of the Titius–Bode law. Bode determined the orbit of Uranus and suggested the planet's name. Pic. | ||1747: Johann Elert Bode born ... astronomer known for his reformulation and popularisation of the Titius–Bode law. Bode determined the orbit of Uranus and suggested the planet's name. Pic. | ||
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||1851: Jacobus Kapteyn born ... astronomer. He carried out extensive studies of the Milky Way and was the discoverer of evidence for galactic rotation. Pic. | ||1851: Jacobus Kapteyn born ... astronomer. He carried out extensive studies of the Milky Way and was the discoverer of evidence for galactic rotation. Pic. | ||
||1869: Carl Reichenbach dies ... chemist and philosopher. | ||1869: Carl Reichenbach dies ... chemist and philosopher. Pic. | ||
File:Henri Victor Regnault 1860s.jpg|link=Henri Victor Regnault (nonfiction)|1878: Chemist and physicist [[Henri Victor Regnault (nonfiction)|Henri Victor Regnault]] dies. He was an early thermodynamicist, best known for his careful measurements of the thermal properties of gases, and for mentoring William Thomson in the late 1840s. | File:Henri Victor Regnault 1860s.jpg|link=Henri Victor Regnault (nonfiction)|1878: Chemist and physicist [[Henri Victor Regnault (nonfiction)|Henri Victor Regnault]] dies. He was an early thermodynamicist, best known for his careful measurements of the thermal properties of gases, and for mentoring William Thomson in the late 1840s. | ||
Revision as of 10:12, 6 April 2019
1618: Johannes Kepler uses Gnomon algorithm functions to prevent crimes against laws of planetary motion.
1755: Physicist, mathematician, and astronomer Jean-Pierre Christin dies. He invented the Celsius thermometer.
1833: Mathematician and academic Alfred Clebsch born. He will make important contributions to algebraic geometry and invariant theory.
1878: Chemist and physicist Henri Victor Regnault dies. He was an early thermodynamicist, best known for his careful measurements of the thermal properties of gases, and for mentoring William Thomson in the late 1840s.
1883: The first electric lighting system employing overhead wires, built by Thomas Edison, begins service at Roselle, New Jersey.
1884: Electrical engineer and crime-fighter Zénobe Gramme uses what will later be called the Gramme Device to detect and prevent crimes against mathematical constants.
1915: Georges Claude patents the neon discharge tube for use in advertising.
1978: Steganographic analysis of the Petrozavodsk phenomenon reveals "nearly half a megabyte" of top-secret data relating to the alleged "Empty Noise Into Alien Communication" program.
2015: Engineer and inventor Justin Capră dies. He designed fuel-efficient cars, unconventional engines, aircraft, and jet backpacks.
2016: Army research laboratories convert modern plowshares into ancient swords. Military contractors call technique "Astonishing breakthrough."