1820 In Science

Astronomy

• Royal Astronomical Society founded

Biology

• Christian Friedrich Nasse formulates Nasse's law: hemophilia occurs only in males and is passed on by unaffected females

Computing

• Charles Xavier Thomas de Colmar makes his "Arithmometer", the first mass-produced calculator

Exploration

• January 27 Antarctica is sighted for the first time by British navy captain Edward Bransfield

Physics

• Hans Christian rsted discovers relationship between electricity and magnetism
• Laws of electrodynamics established by Andr-Marie Ampre

Awards

• Copley Medal - Hans Christian rsted

Births

• March 24 - Alexandre-Edmond Becquerel (d. 1891), physicist.
• April 16 - Victor Alexandre Puiseux (d. 1883), mathematician.
• July 2 William John Macquorn Rankine (d. 1872), physicist.
• August 2 - John Tyndall (d. 1893), physicist.

Deaths

• June 19 Joseph Banks (b. 1743), naturalist.

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