1913 in science

The year 1913 in science and technology involved some significant events, listed below.

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

Awards

*Nobel Prize
** Physics - Heike Kamerlingh-Onnes
** Chemistry - Alfred Werner
** Medicine - Charles Robert Richet

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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