1821 In Science

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1821 In Science

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1820 In Science

1821 in science

1822 In Science

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The year 1821 in Science and Technology included many events, some of which are listed here.

ASTRONOMY

Comet Encke is the second Comet to be discovered to have a periodic Orbit , after Comet Halley

Alexis Bouvard detects irregularities in the orbit of Uranus

EXPLORATION

William Edward Parry starts his second voyage to find the Northwest Passage

GEOLOGY

Ignatz Venetz proposes his Ice Age theory

Pierre Berthier discovers Bauxite

Mary Anning finds the first ever Plesiosaur fossil at Lyme Regis

MATHEMATICS

Augustin Louis Cauchy gives the first complete presentation of calculus using limits

PALEONTOLOGY

William Buckland finds the remains of a Hyena s' den in Yorkshire , containing the bones of Lion s, Elephant s and Rhinoceros

PHYSICS

Michael Faraday discovers electromagnetic rotation

Thomas Johann Seebeck discovers the Thermoelectric Effect

Augustin Fresnel shows that light is made up of a traverse wave motion

AWARDS

; John Herschel

BIRTHS

May 16 - Pafnuty Chebyshev (d. 1894 ), Mathematician .

August 16 - Arthur Cayley (d. 1895 ), mathematician.

August 31 - Hermann Von Helmholtz (d. 1894 ), Physicist .

October 13 - Rudolf Virchow (d. 1902 ), Biologist .

November 18 - Franz Bronnow (d. 1891 ), Astronomer .

DEATHS

April 20 - Franz Karl Achard (b. 1753 ), Chemist .