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| List of years in science (Table) |
|---|
| … 1903 • 1904 • 1905 • 1906 • 1907 • 1908 • 1909 • 1910 • 1911 • 1912 – 1913 – 1914 • 1915 • 1916 • 1917 • 1918 • 1919 • 1920 • 1921 • 1922 • 1923 … |
| Related time period or subjects |
| … 1910 • 1911 • 1912 – 1913 – 1914 • 1915 • 1916 … … 1880s • 1890s • 1900s – 1910s – 1920s • 1930s • 1940s … … 19th century – 20th century – 21st century … |
| Art Archaeology Architecture Literature Music Science more |
The year 1913 in science and technology involved some significant events, listed below.
Contents |
Chemistry
- Protactinium was first identified by Kasimir Fajans and O. H. Göhring
- Henry Moseley shows that nuclear charge is the real basis for numbering the elements and discovers a systematic relation between wavelength and atomic number by using x-ray spectra obtained by diffraction in crystals.
Mathematics
- Publication of the 3rd volume of Principia Mathematica by Alfred North Whitehead and Bertrand Russell, one of the most important and seminal works in mathematical logic and philosophy.
Physics
- William Henry Bragg and William Lawrence Bragg work out the Bragg condition for strong X-ray reflection
- Niels Bohr presents his quantum model of the atom
- Robert Millikan measures the fundamental unit of electric charge
- Johannes Stark demonstrates that strong electric fields will split the Balmer spectral line series of hydrogen
Geology
- Albert Michelson measures tides in the solid body of the Earth
Technology
- Kinemacolor, the first commercial "natural color" system for movies is invented
Awards
Births
- March 26 - Paul Erdős (d. 1996), mathematician.
Deaths
- January 2 - Léon Teisserenc de Bort (b. 1855), meteorologist.
- May 28 - John Lubbock (b. 1834), naturalist and archaeologist.
- November 7 - Alfred Russel Wallace (b. 1823), biologist.
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