Bohr, Niels Henrik David
Published: August 18, 2006, 3:06 pm
Updated: August 18, 2006, 3:06 pm
This article has been reviewed by the following Topic Editor:
Tom Lawrence
Niels Henrik David Bohr (1885-1962), a Danish physicist who identified the fundamental structure of atoms and quantum mechanics. Building on the earlier theory of Ernest Rutherford, Bohr proposed that electrons travel only in certain successively larger orbits. He argued that the outer orbits could hold more electrons than the inner ones, and that these outer orbits determine the atom's chemical properties. Bohr also described the way atoms emit radiation, by suggesting that electrons emit light when jumping from an outer orbit to an inner one. Other physicists later expanded his theory into quantum mechanics, a foundation for modern physics. During the Nazi occupation of Denmark, Bohr escaped and eventually worked on the Atomic Energy Project in England and the U.S. during World War II. He later advocated the peaceful application of atomic physics. Bohr was awarded the Nobel Prize in Physics 1922.
Further Reading
Niels Bohr(Nobel Prize Biographies)
Niels Bohr Archive (NBI: Niels Borhr Institute)
A Science Odyssey: People and Discoveries (PBS)
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Citation
Cutler J. Cleveland (Lead Author);Tom Lawrence (Topic Editor) "Bohr, Niels Henrik David". In: Encyclopedia of Earth. Eds. Cutler J. Cleveland (Washington, D.C.: Environmental Information Coalition, National Council for Science and the Environment). [First published in the Encyclopedia of Earth August 18, 2006; Last revised Date August 18, 2006; Retrieved May 21, 2013 <http://www.eoearth.org/article/Bohr,_Niels_Henrik_David>
The Author
Cutler J. Cleveland is Professor of Earth and Environment at Boston University, where he also is on the faculty of the Center for Energy and Environmental Studies. Professor Cleveland is Editor-in-Chief of the Encyclopedia of Energy (Elsevier, 2004), winner of an American Library Association award, the Dictionary of Energy (Elsevier, 2005), Handbook of Energy (Elsevier, forthcoming), and is the Founding Editor-in-Chief of the Encyclopedia of Earth. He is the recipient of the Adelma ... (Full Bio)
Niels Henrik David Bohr (1885-1962), a Danish physicist who identified the fundamental structure of atoms and quantum mechanics. Building on the earlier theory of Ernest Rutherford, Bohr proposed that electrons travel only in certain successively larger orbits. He argued that the outer orbits could hold more electrons than the inner ones, and that these outer orbits determine the atom's chemical properties. Bohr also described the way atoms emit radiation, by suggesting that electrons emit light when jumping from an outer orbit to an inner one. Other physicists later expanded his theory into quantum mechanics, a foundation for modern physics. During the Nazi occupation of Denmark, Bohr escaped and eventually worked on the Atomic Energy Project in England and the U.S. during World War II. He later advocated the peaceful application of atomic physics. Bohr was awarded the Nobel Prize in Physics 1922.
Further Reading
Niels Bohr(Nobel Prize Biographies)
Niels Bohr Archive (NBI: Niels Borhr Institute)
A Science Odyssey: People and Discoveries (PBS)
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