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The year 1804 in science and technology included many events, some of which are listed here.

1 Chemistry

William Hyde Wollaston discovers palladium, and how to make malleable platinum
Jons Jacob Berzelius discovers cerium

2 Exploration

May 14 - The Lewis and Clark Expedition departs from Camp Dubois and begin their historic journey by traveling up the Missouri River

3 Geology

Alexander von Humboldt discovers that the Earth's magnetic field decreases from the poles to the equator

4 Meteorology

Joseph Louis Gay-LussacJoseph-Louis Gay-Lussac ( December 6, 1778 May 10, 1850) was a French chemist and physicist. He is known mostly for two laws related to gases. Gay-Lussac was born at St Leonard, in the department of Limoges. He received his early education at home and in and Jean Baptiste BiotJean-Baptiste Biot ( April 21 1774, Paris February 3 1862, Paris) was a French physicist and mathematician who in the early 1800s studied the relationship between electrical current and magnetism (see Biot-Savart Law), as well as the polarisation of light study the atmosphere from a hot-air balloon

5 Technology

Richard TrevithickRichard Trevithick ( 13 April 1771 22 April 1833) was an English inventor, who was born in Illogan, Cornwall. Richard Trevithick was the son of a mine engineer, and as a child would watch steam engines pump water out of the deep tin and copper mines which produces his first railway locomotive

6 Awards

Copley MedalThe Copley Medal is a scientific award for work in any field of science, the highest award granted by the Royal Society of London. It is also the society's oldest award, the first medal being awarded in 1731. The award was created after a £100 bequest in: Smithson TennantSmithson Tennant ( November 30, 1761 February 22, 1815) was an English chemist. Tennant is best known for his discovery of the elements iridium and osmium, which he found in the residues from the solution of platinum ores in 1804. He also contributed to t

7 Births

July 20July 20 is the 201st day (202nd in leap years) of the year in the Gregorian Calendar, with 164 days remaining. Events 1304 Fall of Stirling Castle: Edward I of England takes the last rebel stronghold in the Wars of Scottish Independence. 1712 In the Unite - Richard OwenSir Richard Owen ( July 20, 1804 December 18, 1892) was an English biologist, comparative anatomist and palaeontologist. Early life and career Owen was born in Lancaster. He received his early education at the grammar school of that town. In 1820 he was a, anatomist and paleontologist (died 1892See also Other events of 1892 List of years in science. 1891 in science 1892 in science 1893 in science. The year 1892 in science and technology included many events, some of which are listed here. Chemistry William Ramsay discovers argon Mathematics Geor)
September 14 - John Gould, zoologist (died 1881)
October 24 - Wilhelm Eduard Weber, physicist (died 1891)
December 10 - Carl Gustav Jakob Jacobi, mathematician (died 1851)
Robert Schomburgk , explorer (died 1865)
William Stokes , physician (died 1878)
Heinrich Lenz, physicist (died 1865)
Matthias Schleiden, biologist (died 1881)

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1804Events January 1 End of French rule in Haiti June 15 The Twelfth Amendment to the U. Constitution ratified by New Hampshire, and arguably becomes effective (subsequently vetoed by the Governor of New Hampshire) July 27 The Twelfth Amendment to the U.	1804 in literatureSee also 1803 in literature, other events of 1804, 1805 in literature, list of years in literature. Events New Books Amazement Mary Meeke The Eve of San-Pietro Mary A. Neri Familiar Epistles to J. Jones, Esquire, on the State of the Irish Stage John Wilso	1804 in music1803 in music 1804 in music 1805 in music See also: other events in 1804, 1804 in literature Events Beethoven's Piano Sonata No. 22 in F major written Beethoven's Opus 85 Christus am Olberge completed Beethoven angrily renames his Third Symphony from the
1804 in scienceThe year 1804 in science and technology included many events, some of which are listed here. See also 1803 in science, other events of 1804, 1805 in science, list of years in science Chemistry William Hyde Wollaston discovers palladium, and how to make ma	1804 in CanadaSee also 1803 in Canada, other events of 1804, 1805 in Canada and the list of 'years in Canada'. Events David Thompson works in Peace River country. Lewis and Clark start up the Missouri River. Merger of the Northwest Company and XY Fur Companies. The XY	1804 silver dollarThe 1804 silver dollar is one of the rarest and most famous coins in the world. The United States Mint ceased production of silver dollars in 1803, and the 1804 silver dollar was not actually minted until 1834, when the U. Department of State decided that

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