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Topic: Niels Bohr Institute


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  Niels Bohr - Open Encyclopedia   (Site not responding. Last check: 2007-10-08)
Based on Rutherford's theories, Bohr published his model of atomic structure in 1913, introducing the theory of electrons travelling in orbits around the atom's nucleus, the chemical properties of the element being largely determined by the number of electrons in the outer orbits.
In 1916, Bohr became a professor at the University of Copenhagen, and director of the newly constructed "Institute of Theoretical Physics" in 1920.
Bohr was largely affected by the philosophy of Søren Kierkegaard of sharp sudden "quality" changes and rejection of the continuous changing.
open-encyclopedia.com /Niels_Bohr   (896 words)

  
 Niels Bohr Institute for Astronomy, Physics and Geophysics - Wikipedia, the free encyclopedia
The Niels Bohr Institute for Astronomy, Physics and Geophysics is part of the Faculty of Science at the University of Copenhagen.
The Niels Bohr Institute is responsible for all the teaching of physics at the University of Copenhagen.
The four main departments of the Institute are the Astronomical Observatory, the Department of Geophysics, the Niels Bohr Institute and the Ørsted Laboratory.
en.wikipedia.org /wiki/Niels_Bohr_Institute_for_Astronomy,_Physics_and_Geophysics   (131 words)

  
 Mermaid Lounge - APRIL 2000   (Site not responding. Last check: 2007-10-08)
Niels Bohr was born in central Copenhagen December 7, 1885.
Bohr was from the very beginning an outstanding student, and when he in 1903 was accepted at the University of Copenhagen, he chose physics as his principal subject, and astronomy, math's and chemistry as his subsidiary subject.
Niels Bohr died from a heart attack in 1962, and is buried in Assistens Kirkegården in Copenhagen.
www.denmark.org /mermaid_Apr00/nielsbohr.html   (1064 words)

  
 Copenhagen . Niels Bohr | PBS
Bohr postulated that radiation is emitted from atoms not as a result of the periodic motion of the electron in its orbit, but only when an electron "jumps" from one orbit to another losing energy that is emitted as radiation.
Bohr's theory of the compound nucleus, in which the repulsion between positively charged protons is countered by huge amounts of energy in order to hold the nucleus together, helped lead to the hypothesis that splitting an atom would produce enough energy to fabricate a powerful weapon.
Niels Bohr died in 1962 and is buried in Copenhagen.
www.pbs.org /hollywoodpresents/copenhagen/story/bohr.html   (558 words)

  
 Niels Bohr - Wikipedia, the free encyclopedia
His father, Christian Bohr, was a professor of physiology at the University of Copenhagen, while his mother, Ellen Adler Bohr, came from a wealthy Sephardic Jewish family prominent in Danish banking and parliamentary circles.
In 1916, Niels Bohr became a professor at the University of Copenhagen, and director of the newly constructed "Institute of Theoretical Physics" in 1920.
Robert Oppenheimer suggested Bohr visit President Franklin Roosevelt to convince him that the Manhattan Project should be shared with the Russians in the hope of speeding up its results.
en.wikipedia.org /wiki/Niels_Bohr   (1077 words)

  
 Bohr_Niels   (Site not responding. Last check: 2007-10-08)
When Niels was only a few months old his father Christian had been appointed as a lecturer to fill a post left vacant by the death of Peter Panum, the professor of physiology at the University of Copenhagen, and a short while later the family moved into the Panum's professorial house in Copenhagen.
Bohr applied to the Carlsberg Foundation for a travel grant in May 1911 and, after the award was made, went to England in September 1911 to study with Sir J J Thomson at Cambridge.
Bohr's other major contributions, in addition to quantum theory, include his theoretical description of the periodic table of elements around 1920, his theory of the atomic nucleus being a compound structure in 1936, and his understanding of uranium fission in terms of the isotope 235 in 1939.
www-groups.dcs.st-and.ac.uk /~history/Mathematicians/Bohr_Niels.html   (2841 words)

  
 NBI Today and previously.
Niels Bohr returned to Denmark in August 1945 and immediately began to plan an extension of the Institute to permit active participation in nuclear research which was rapidly developing.
Bohr's lectures, composed with tremendous labour, were indeed masterpieces of allusive evocation of a subtle dialectic; the trouble was that the audience was usually unprepared to catch subtle allusions to conceptions and arguments which were anyhow unfamiliar and hard to grasp.
Bohr intervened with a soothing pronouncement about how hard it was to imagine how the behaviour of the electron could be described beyond the limit where correspondence with the classical point-charge picture afforded legitimate guidance; we must here be prepared for further renouncement in the application of classical concepts.
www.nbi.dk /nbi-history.html   (6277 words)

  
 Niels Bohr - Biography
Bohr's subsequent studies, however, became more and more theoretical in character, his doctor's disputation being a purely theoretical piece of work on the explanation of the properties of the metals with the aid of the electron theory, which remains to this day a classic on the subject.
Bohr's activities in his Institute were since 1930 more and more directed to research on the constitution of the atomic nuclei, and of their transmutations and disintegrations.
Niels Bohr was President of the Royal Danish Academy of Sciences, of the Danish Cancer Committee, and Chairman of the Danish Atomic Energy Commission.
www.nobel.se /physics/laureates/1922/bohr-bio.html   (1164 words)

  
 Niels Bohr Institute - Wikipedia, the free encyclopedia
The famous Danish theoretical physicist Niels Bohr was on its faculty from 1914 onwards.
On Niels Bohr's 80th birthday - October 7, 1965 - the Institute for Theoretical Physics of the University of Copenhagen officially became The Niels Bohr Institute.
Physicists from across Europe (and sometimes further abroad) often visited the Institute to confer with Bohr on new theories and discoveries.
www.wikipedia.org /wiki/Niels_Bohr_Institute   (154 words)

  
 Learn more about Niels Bohr in the online encyclopedia.   (Site not responding. Last check: 2007-10-08)
Niels Henrik David Bohr (October 7, 1885 - November 18, 1962) was a Danish physicist.
Based on Rutherford's theories, Bohr published his Bohr model about atom structure in 1913, introducing the theory of electrons travelling on orbits around the atom's nucleus, with the outer orbits holding more electrons than the inner ones, thereby determining the chemical properties of the atom.
Bohr also conceived the principle of complimentarity: that items could be separately analyzed as having several contradictory properties.
www.onlineencyclopedia.org /n/ni/niels_bohr.html   (659 words)

  
 Bohr, Niels
Bohr was born in Copenhagen on Oct. 7, 1885.
Bohr distinguished himself at the University of Copenhagen, winning a gold medal from the Royal Danish Academy of Sciences and Letters for his theoretical analysis of and precise experiments on the vibrations of water jets as a way of determining surface tension.
Bohr was among the first to see the importance of the atomic number, which indicates the position of an element in the periodic table and is equal to the number of natural units of electric charge on the nuclei of its atoms.
www.britannica.com /nobel/macro/5000_79.html   (2274 words)

  
 Niels Bohr | Physicist
Niels Bohr was born on October 7, 1885 in Copenhagen, Denmark.
Bohr became a professor of physics at the University of Copenhagen in 1916.
Bohr became a Fellow of the Royal Society of London in 1926, receiving the Royal Society Copley Medal in 1938.
www.lucidcafe.com /library/95oct/nbohr.html   (662 words)

  
 Niels Bohr - Wikipedia
Bohr blev uddannet fra Københavns Universitet, hvor han i 1911 blev doktor med disputatsen Studier over Metallernes Elektrontheori, hvorefter han tog til Manchester i England og forskede hos Ernest Rutherford.
Bohr blev i 1916 udpeget til professor på Københavns Universitet og til leder af det nyoprettede Institut for teoretisk fysik.
Niels Bohr blev som en af de få ikke-kongelige danskere slået til ridder af Elefantordenen.
da.wikipedia.org /wiki/Niels_Henrik_David_Bohr   (273 words)

  
 Niels Bohr: The Atomic Bomb and Beyond
But Bohr was also one of the most foresighted of men, and one of the few who not only thought ahead about the post-World War II implications of the atomic bomb but who personally urged President Franklin Roosevelt and Prime Minister Winston Churchill to prepare for the nuclear future.
Bohr became one of the key fission researchers, determining in 1939 that the rare U-235 isotope was the isotope that made uranium fissionable and which made a chain reaction theoretically possible.
Bohr was surprised; he later wrote: "...it was a revelation to me to learn...about the advanced stage the work had already reached" (J. Robert Oppenheimer papers, Box 34, Bohr memorandum to President Roosevelt, July 3rd, 1944, Library of Congress).
www.doug-long.com /bohr.htm   (1791 words)

  
 Niels Bohr Summer Institute 2005
In the series of Niels Bohr Summer Institutes a workshop on transport phenomena in nanostructures, such as single-molecular transistors, mesoscopic quantum dots, nanotubes, and nanoelectromechanical systems is held in Copenhagen.
In order to achieve this goal, The Niels Bohr Summer Institute invite a number of distinguished researchers to particiapte in the workshop and the meeting is open to interested researchers upon application.
The meeting will be held at the H.C. Ørsted Institute and it is a collaboration between The Niels Bohr Institute and the Nano-Science Center and the The Copenhagen Graduate for Nanoscience and Nanotechnology.
www.nbi.ku.dk /side27927.htm   (190 words)

  
 short stories concerning Niels Bohr's Institute of Theoretical Physics
In the basement of Niels Bohr’s Institute for Theoretical Physics in Copenhagen was a well (Levi 1986) - two meters across, three meters deep, a spiral staircase leading to the bottom.
Bohr derived great pleasure from the fact that he no longer had to both live and work in the same place (Aaserud 1985) - not surprising when you consider that his new home was a mansion smack dab next to the Carlsberg brewery (with beer on tap?).
Bohr’s old friend George de Hevesy was more of a workaholic and not nearly as eager to leave the Institute and go home as Bohr.
www.orau.org /PTP/articlesstories/bohrswell.htm   (1124 words)

  
 Niels Bohr   (Site not responding. Last check: 2007-10-08)
In one of Bohr's successful attempts at this, he was especially pleased to note that Einstein had forgotten that according to his own theory of general relativity clocks run more slowly under the influence of a gravitational field.
Bohr said that many non-radiating orbits were allowed, each one having an integral factor of the basic unit of angular momentum, h/2*pi.
Bohr's "Copenhagen school" produced the famous "Copenhagen interpretation" of quantum mechanics of which one of the main planks was Bohr's theory of "complementarity".
orac.sunderland.ac.uk /~hs0bcl/h_nb.htm   (723 words)

  
 Niels Bohr
These concepts were manifested in Bohr's quantum theory.
One of Bohr's most famous students was Werner Heisenberg, a crucial figure in the development of quantum mechanics, but also head of the German atomic bomb project.
Niels Bohr and his wife Margrethe had several children, one of whom, Aage Niels Bohr, also became a very successful physicist: like his father, he won a Nobel prize.
www.sciencedaily.com /encyclopedia/niels_bohr   (815 words)

  
 Niels Bohr Institute -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-10-08)
The Niels Bohr Institute is part of the (Click link for more info and facts about Niels Bohr Institute for Astronomy, Physics and Geophysics) Niels Bohr Institute for Astronomy, Physics and Geophysics of the (Click link for more info and facts about University of Copenhagen) University of Copenhagen.
The famous (A Scandinavian language that is the official language of Denmark) Danish theoretical physicist (Danish physicist who studied atomic structure and radiations; the Bohr theory of the atom accounted for the spectrum of hydrogen (1885-1962)) Niels Bohr was on its faculty from 1914 onwards.
(A scientist trained in physics) Physicists from across (The 2nd smallest continent (actually a vast peninsula of Eurasia); the British use `Europe' to refer to all of the continent except the British Isles) Europe (and sometimes further abroad) often visited the Institute to confer with Bohr on new theories and discoveries.
www.absoluteastronomy.com /encyclopedia/n/ni/niels_bohr_institute.htm   (206 words)

  
 Papers cast light on Nazi atomic-bomb project - Stormfront White Nationalist Community   (Site not responding. Last check: 2007-10-08)
The Niels Bohr Institute is one of the four departments of the Niels Bohr Institute for Astronomy, Physics and Geophysics, which is part of University of Copenhagen.
Bohr and Heisenberg, who died in 1962 and 1976 respectively, were considered among the world's greatest physicists.
Bohr was awarded the 1922 Nobel Prize in physics for nuclear research.
www.stormfront.org /forum/showthread.php?t=9282   (692 words)

  
 A Science Odyssey: People and Discoveries: Niels Bohr
Niels Bohr was born and educated in Copenhagen, Denmark.
Bohr remained director of the institute for the rest of his life, except for his absence during World War II.
Bohr's personal warmth, good humor ("Never express yourself more clearly than you can think," he once said), and hospitality combined with world events to make Copenhagen a refuge for many of the century's greatest physicists.
www.pbs.org /wgbh/aso/databank/entries/bpbohr.html   (705 words)

  
 Niels Henrik David Bohr
In 1916, Bohr became professor of theoretical physics at the Univ. of Copenhagen, and in 1920 he was made director of the Institute of Theoretical Physics, which he was instrumental in founding.
Bohr provided the solution to this problem in 1913, when he postulated that electrons move around the nucleus of the atom in restricted orbits and explained the manner in which the atom absorbs and emits energy.
Bohr was a leading figure in the continuing development of the quantum theory over the next twenty years.
www.infoplease.com /ce6/people/A0808132.html   (446 words)

  
 AIP Center for History of Physics Niels Bohr Library   (Site not responding. Last check: 2007-10-08)
of physics and allied fields, the Niels Bohr Library is part of the Center for History of Physics of the American Institute of Physics (AIP), located in College Park, Maryland.
The Niels Bohr Library's resources consist of books, journals, archives and manuscripts, photographs, interview tapes and transcripts, and other materials documenting the history of nineteenth and twentieth century physics and allied fields (such as astronomy, geophysics, and optics) in America and throughout the world.
Click here for archival resources near D.C. The Niels Bohr Library was created through the generosity of Dannie Heineman, and is sustained by the general funds of the American Institute of Physics and by tax-deductible donations to the Friends of the Center for History of Physics and its Endowment Fund.
www.aip.org /history/nblbro.htm   (1724 words)

  
 A Science Odyssey: People and Discoveries: Heisenberg states the uncertainty principle
In 1927, Werner Heisenberg was in Denmark working at Niels Bohr's research institute in Copenhagen.
Bohr was away on a skiing holiday, and Heisenberg was left to mull things over himself.
Heisenberg and Bohr's theories were compatible and became known together as the Copenhagen interpretation and accepted as the foundation for quantum theory.
www.pbs.org /wgbh/aso/databank/entries/dp27un.html   (715 words)

  
 Aage N. Bohr - Autobiography
I was born in Copenhagen on June 19, 1922, as the fourth son of Niels Bohr and Margrethe Bohr (née Nørlund).
I have been connected with the Niels Bohr Institute since the completion of my university studies, first as a research fellow and from 1956 as a professor of physics at the University of Copenhagen.
In 1957, Nordita (Nordisk Institut for Teoretisk Atomfysik) was founded on the premises of the Niels Bohr Institute, and the two institutes operate in close association.
nobelprize.org /physics/laureates/1975/bohr-autobio.html   (880 words)

  
 The Institute
The Niels Bohr Institute belongs to the Faculty of Science at Copenhagen University.
At the Niels Bohr Institute we do research and education within astronomy, geophysics, nanophysics, general physics and biophysics.
The institute is situated around 'Fælledparken' at three different locations: Rockefeller Komplekset at Juliane Maries Vej 26-32, H.C. Ørsted Institutet at Universitetsparken 5 and Blegdamsvej 17-21.
www.nbifafg.ku.dk /theinstitute   (111 words)

  
 AllRefer.com - Aage Niels Bohr (Physics, Biography) - Encyclopedia
Aage Niels Bohr[Agu nEls bOr] Pronunciation Key, 1922–, Danish physicist, Ph.D. Univ. of Copenhagen, 1954.
He worked with his father Niels Bohr (who won the Nobel Prize in Physics in 1922) in the 1940s on the development of the atomic bomb and succeeded (1963) him as director of the Niels Bohr Institute of Theoretical Physics.
Bohr and colleague Benjamin Mottelson helped prove the theories of James Rainwater regarding the structure of atomic nuclei.
reference.allrefer.com /encyclopedia/B/Bohr-Aag.html   (198 words)

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