1904 in science
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See also:
Other events of 1904
List of years in science
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1903 in science
1904 in science
1905 in science
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The year 1904 in science and technology included many events, some of which are listed below.
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Astronomy
- Edward Walter Maunder plots the first sunspot "butterfly diagram"
- Himalia, a moon of Jupiter, discovered at Lick Observatory
Medicine
- Epinephrine first artificially synthesized by Friedrich Stolz.
Physics
- Vacuum tube invented by John Ambrose Fleming
Awards
Births
- January 26 - Ancel Keys, nutritionist.
- March 20 - B. F. Skinner (d. 1990), behavioral psychologist.
- April 22 - Robert Oppenheimer (d. 1967), physicist.
- July 5 - Ernst Mayr (d. 2005), evolutionary biologist.
- August 28 - Secondo Campini (d. 1980), Italian jet pioneer.
- November 11 - J. H. C. Whitehead (d. 1960), British mathematician.
Deaths
- January 20 - Dmitri Mendeleev (b. 1834), Russian chemist and inventor of the Periodic table.
- May 10 - Henry Morton Stanley (b. 1841), explorer, journalist.sv:Vetenskapsåret 1904