1913 in science
From Wikipedia, the free encyclopedia.

The year 1913 CE in science and technology.

See also: 1912 in science, other events of 1913, 1914 in science and the list of years in science.

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.

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

Nobel Prizes

• Heike Kamerlingh-Onnes is awarded the Nobel Prize for Physics
• Alfred Werner is awarded the Nobel Prize for Chemistry
• Charles Robert Richet is awarded the Nobel Prize for Medicine

Births

• March 26 - Paul Erdös, mathematician

Deaths

• November 7 - Alfred Russel Wallace, biologist

The original article can be found at: http://en.wikipedia.org/wiki/1913_in_science.
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