1904 in science

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List of years in science (Table)
… 1894 • 1895 • 1896 • 1897 • 1898 • 1899 • 1900 •    1901 • 1902 • 1903 – 1904 – 1905 • 1906 • 1907 •    1908 • 1909 • 1910 • 1911 • 1912 • 1913 • 1914 …
Related time period or subjects
… 1901 • 1902 • 1903 – 1904 – 1905 • 1906 • 1907 … … 1870s • 1880s • 1890s – 1900s – 1910s • 1920s • 1930s … … 19th century – 20th century – 21st century …
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The year 1904 in science and technology involved some significant events, listed below.

Contents 1 Astronomy 2 Mathematics 3 Medicine 4 Physics 5 Awards 6 Births 7 Deaths

[edit] Astronomy

• Edward Walter Maunder plots the first sunspot "butterfly diagram"
• The sixth moon of Jupiter, later called Himalia, discovered at Lick Observatory

[edit] Mathematics

• Henri Poincaré discovers the Poincaré sphere, leading him to formulate the Poincaré conjecture

[edit] Medicine

• Epinephrine first artificially synthesized by Friedrich Stolz.

[edit] Physics

• Vacuum tube invented by John Ambrose Fleming
• J. J. Thomson proposes the plum pudding model for the atom.
• Hantaro Nagaoka develops the Saturnian model for the atom.

[edit] Awards

• Nobel Prizes
  • Physics - John William Strutt, 3rd Baron Rayleigh
  • Chemistry - Sir William Ramsay
  • Medicine - Ivan Pavlov

[edit] 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.

[edit] Deaths

• January 20 - Dmitri Mendeleev (b. 1834), Russian chemist and inventor of the Periodic table.
• May 10 - Henry Morton Stanley (b. 1841), explorer, journalist.