- Source: 1781 in science
The year 1781 in science and technology involved some significant events.
Astronomy
March 13 – William Herschel observes Uranus (although initially recording it as a comet).
March 20 – Pierre Méchain discovers dwarf galaxy NGC 5195.
Charles Messier's final catalogue of Messier objects is published.
Christian Mayer's catalogue of binary stars is published.
Biology
Felice Fontana uses a microscope to describe the axon of a brain cell.
John Latham begins publication of A General Synopsis of Birds.
Chemistry
Archibald Cochrane, 9th Earl of Dundonald is granted a British patent for the manufacture of coal tar.
Carl Wilhelm Scheele ascertains that a new acid can be made from tungstenite, leading to the discovery of tungsten in 1783.
Autumn – Peter Jacob Hjelm isolates molybdenum.
Hendry Carvendish proved that water is a compound is made up of two elements that is two molecule hydrogen and one molecule of oxygen are combined in fixed ratio (2:1)water is a compound
Awards
Copley Medal: William Herschel
Births
January 30 – Adelbert von Chamisso, poet and botanist (died 1838)
February 17 – Rene Theophile Hyacinthe Laennec, French physician, inventor of the stethoscope (died 1826).
May 29 – John Walker, English chemist (died 1859)
June 9 – George Stephenson, English locomotive engineer (died 1848)
June 21 – Siméon Poisson, mathematician (died 1840)
July 6 – Thomas Stamford Raffles, founder of the Zoological Society of London (died 1826)
September 14 – James Walker, Scottish civil engineer (died 1862)
October 5 – Bernhard Bolzano, mathematician (died 1848)
December 11 – David Brewster, Scottish physicist (died 1868)
Deaths
May 27 – Giovanni Battista Beccaria, Italian physicist (born 1716)
References
Kata Kunci Pencarian:
- Idealisme transendental
- Uranus
- Amerika Serikat
- Singapura
- Francesco Redi
- William Westall
- Paus bungkuk
- Pertanian organik
- Messier 98
- Los Angeles
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