Niels Bohr was born on 7 October 1885 in Copenhagen. A Danish physicist, Bohr transformed the understanding of the atom. In 1913 he proposed a model in which electrons occupy fixed energy levels and emit or absorb light when jumping between them, for which he received the Nobel Prize in Physics in 1922. He founded and led the institute for theoretical physics in Copenhagen, which became a meeting place for the leading physicists of the age. His principle of complementarity and his interpretation of quantum mechanics, developed with colleagues such as Heisenberg, led to famous debates with Einstein. In 1943 he escaped German-occupied Denmark, and after the war he campaigned for international openness about nuclear weapons.
Before and after
- 7 February 1885Birth of Sinclair Lewis
- from 1 July 1885 to 2 April 1908Congo Free State
- 23 July 1885Death of Ulysses S. Grant
- 11 September 1885Birth of D. H. Lawrence
- 7 October 1885Birth of Niels Bohr
- 11 October 1885Birth of François Mauriac
- 30 October 1885Birth of Ezra Pound
- from 17 November 1885 to 19 November 1885Battle of Slivnitsa
- 21 November 1885Founding of Southampton F.C.
More in Science & technology
- 1789Discovery of uranium
- 1807Discovery of potassium
- 30 June 1808Discovery of boron
- 1810Discovery of fluorine
- 1823Discovery of silicon
- 1898Discovery of neon
The era
This moment belongs to the Industrial era (1760 CE to 1914 CE), steam, factories and revolutions. You can also browse everything in the 19th century.