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Bohr Niels:     more books (100)

Niels Bohr's Times,: In Physics, Philosophy, and Polity by Abraham Pais, 1994-01-20 Volume I - Atomic Theory and the Description of Nature by Niels Bohr, 1987-10 Einstein, Bohr and the Quantum Dilemma: From Quantum Theory to Quantum Information by Andrew Whitaker, 2006-07-17 Niels Bohr: the man, his science, & the world they changed by Ruth E Moore, 1966 Suspended In Language : Niels Bohr's Life, Discoveries, And The Century He Shaped by Jim Ottaviani, 2004-04 Niels Bohr's Philosophy of Physics by D. R. Murdoch, Dugald Murdoch, 1989-04-28 Niels Bohr Gentle Genius of Denmark: Gentle Genius of Denmark (Makers of Modern Science) by Ray Spangenburg, Diane Moser, 1995-06 Foundations of Quantum Physics I (1926 - 1932) (Niels Bohr - Collected Works) Niels Bohr and Contemporary Philosophy (Boston Studies in the Philosophy of Science) Niels Bohr: Atomic Physicist and Moral Mediator (Makers of Modern Science) by Ray Spangenburg, Diane Kit Moser, 2008-04-30 Niels Bohr: Reflections on Subject and Object by Paul McEvoy, 2001-11 Redirecting Science: Niels Bohr, Philanthropy, and the Rise of Nuclear Physics by Finn Aaserud, 2003-01-30 The Physics of Chance: From Blaise Pascal to Niels Bohr by Charles Ruhla, 1992-12-10 Atomic Theory and the Description of Nature: I: Four Essays: With an Introductory Survey by Niels Bohr by Niels Bohr, 1961

lists with details

1. A Science Odyssey: People And Discoveries: Niels Bohr
   Short biographical article.Category Science Physics History People Bohr, NielsNiels Bohr 1885 1962 Niels Bohr was born and educated in Copenhagen,Denmark. He lived, worked, and died there, too. But his mark  
   http://www.pbs.org/wgbh/aso/databank/entries/bpbohr.html
   
   Extractions: Niels Bohr was born and educated in Copenhagen, Denmark. He lived, worked, and died there, too. But his mark on science and history was worldwide. His professional work and personal convictions were part of the larger stories of the century. At the University of Copenhagen, he studied physics and played soccer (though not as well as his brother, who helped the 1908 Danish soccer team win an Olympic silver medal). After receiving his doctorate in 1911, Bohr traveled to England on a study grant and worked under J.J. Thomson, who had discovered the electron 15 years earlier. Bohr began to work on the problem of the atom's structure. Ernest Rutherford had recently suggested the atom had a miniature, dense nucleus surrounded by a cloud of nearly weightless electrons. There were a few problems with the model, however. For example, according to classical physics, the electrons orbiting the nucleus should lose energy until they spiral down into the center, collapsing the atom. Bohr proposed adding to the model the new idea of quanta put forth by Max Planck in 1901. That way, electrons existed at set levels of energy, that is, at fixed distances from the nucleus. If the atom absorbed energy, the electron jumped to a level further from the nucleus; if it radiated energy, it fell to a level closer to the nucleus. His model was a huge leap forward in making theory fit the experimental evidence that other physicists had found over the years. A few inaccuracies remained to be ironed out by others over the next few years, but his essential idea was proved correct. He received the Nobel Prize for this work in 1922, and it's what he's most famous for. But he was only 37 at the time, and he didn't stop there. Among other things, he put forth the theory of the nucleus as a liquid drop, and the idea of "complementarity" that things may have a dual nature (as the electron is both particle and wave) but we can only experience one aspect at a time.

2. WIEM: Bohr Niels Henrik David
   (encyklopedia.pl)Category World Polska Leksykon Encyklopedia encyklopedia.pl Bbohr niels Henrik David (18851962), fizyk dunski, jeden z najwybitniejszychfizyków XX wieku, uczen JJ Thomsona i E. Rutherforda. Od 1916  
   http://wiem.onet.pl/wiem/00a3da.html
   
   Extractions: poka¿ powi±zane Modele budowy atomu Bohr Niels Henrik David (1885-1962), fizyk duñski, jeden z najwybitniejszych fizyków XX wieku, uczeñ J.J. Thomsona i  E. Rutherforda . Od 1916 prof. uniwersytetu w Kopenhadze, za³o¿yciel i pierwszy dyrektor (1920-62) Instytutu Fizyki Teoretycznej w Kopenhadze (obecnie jego imienia). Jeden z twórców mechaniki kwantowej , 1913 opracowa³ pierwszy kwantowy, uproszczony model budowy atomu (Bohra model atomu). Za badania nad struktur± atomu i mechanizmem promieniowania ¶wiat³a otrzyma³ 1922 Nagrodê Nobla . By³ za³o¿ycielem i centraln± postaci± tzw. szko³y kopenhaskiej mechaniki kwantowej oraz interpretacji filozoficznej teorii kwantów (g³. oponentem tej szko³y by³ A. Einstein ). Bohr przedstawi³ obronê swoich racji w pracy Atomic Physics and Human Nature (1958). Od 1940 bra³ udzia³ w duñskim ruchu oporu przeciw faszystowskiej okupacji. W. Heinsenberg , kieruj±cy niemieckimi pracami nad produkcj± bomby atomowej, próbowa³ nak³oniæ Bohra do wziêcia w nich udzia³u. 1943 w obawie przed aresztowaniem Bohr przedosta³ siê wraz z rodzin± z okupowanej Danii przez Szwecjê do Anglii, sk±d by³ delegowany do USA (jako cz³onek angielskiej grupy) do wziêcia udzia³u w  Manhattan Project Zobacz równie¿ Bohra model atomu Bohra promieñ atomu Powi±zania Komplementarno¶ci zasada Urey Harold Clayton Kwantowa fizyka Nobla Nagrody, 1921-1925

3. Bohr Niels Henrik David From FOLDOC
   bohr niels Henrik David. history of science, philosophy of science danishphysicist (18851962). Although best known for his contributions  
   http://www.swif.uniba.it/lei/foldop/foldoc.cgi?Bohr Niels Henrik David

4. Bohr
   Niels Bohr 1922. Niels Henrik David Bohr, a Danish physicist andNobel laureate, made basic contributions to nuclear physics and  
   http://www.newlisbon.k12.wi.us/physicists/bohr.html
   
   Extractions: Niels Henrik David Bohr, a Danish physicist and Nobel laureate, made basic contributions to nuclear physics and the understanding of atomic structure. Bohr's theory of atomic structure, for which he received the Nobel Prize in physics in 1922, was published in papers between 1913 and 1915. His work drew on Rutherford's nuclear model of the atom, in which the atom is seen as a compact nucleus surrounded by a swarm of much lighter electrons. Bohr's atomic model made use of quantum theory and the Planck constant (the ratio between quantum size and radiation frequency). The model suggested that an atom emits electromagnetic radiation only when an electron in the atom jumps from one quantum level to another. This model contributed enormously to future developments of theoretical atomic physics. In 1916 Bohr went to the University of Copenhagen as a professor of physics, and in 1920 he was made director of the university's newly formed Institute for Theoretical Physics. There Bohr developed a theory relating quantum numbers to large systems that follow classical laws, and made other major contributions to theoretical physics. His work helped lead to the concept that electrons exist in shells and that the electrons in the outermost shell determine an atom's chemical properties. He also served as a visiting professor at many universities. In 1939, recognizing the significance of the fission experiments of the German scientists Otto Hahn and Fritz Strassmann, Bohr convinced physicists at a scientific conference in the U.S. of the importance of those experiments. He later demonstrated that uranium-235 is the particular isotope of uranium that undergoes nuclear fission. Bohr then returned to Denmark, where he was forced to remain after the German occupation of the country in 1940. Eventually, however, he was able to escape to Sweden, under peril of his life and that of his family. From Sweden the Bohrs traveled to England and eventually to the United States, where Bohr joined in the effort to develop the first atomic bomb, working at Los Alamos, New Mexico, until the first bomb's detonation in 1945. He opposed complete secrecy of the project, however, and feared the consequences of this ominous new development. He desired international control.

5. Niels Bohr
   Niels Bohr. Niels Bohr born Oct. 7, 1885, Copenhagen, Den. d. Nov.18, 1962, Copenhagen in full NIELS HENRIK DAVID BOHR Danish  
   http://www.crystalinks.com/bohr.html
   
   Extractions: Niels Bohr - born Oct. 7, 1885, Copenhagen, Den. d. Nov. 18, 1962, Copenhagen in full NIELS HENRIK DAVID BOHR Danish physicist who was the first to apply the quantum theory, which restricts the energy of a system to certain discrete values, to the problem of atomic and molecular structure. For this work he received the Nobel Prize for Physics in 1922. He developed the so-called Bohr theory of the atom and liquid model of the atomic nucleus. Early life  Bohr's father, Christian Bohr, professor of physiology at the University of Copenhagen, was known for his work on the physical and chemical aspects of respiration. His mother, Ellen Adler Bohr, came from a wealthy Jewish family prominent in Danish banking and parliamentary circles. Bohr's scientific interests and abilities were evident early, and they were encouraged and fostered in a warm, intellectual family atmosphere. Niels's younger brother, Harald, became a brilliant mathematician. 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. In 1911 he received his doctorate for a thesis on the electron theory of metals that stressed the inadequacies of classical physics for treating the behaviour of matter at the atomic level. He then went to England, intending to continue this work with Sir J.J. Thomson at Cambridge.

6. Biographies Info Science Bohr Niels
   Translate this page nouvelle recherche, bohr niels Physicien Le père de Niels Bohr est professeurde physiologie mais il se passionne pour la physique. Réalisant  
   http://www.infoscience.fr/histoire/biograph/biograph.php3?Titre=Bohr Niels

7. BOHR Niels Henrik David
   Niels Henrik David Bohr byl dansky fyzik, zijici v letech 1885 1962.Byl clenem mnoha akademii ved v zahranici, od roku 1961 cestnym  
   http://www.volny.cz/michal_bachman/bohr.htm
   
   Extractions: Last updated: 25.05.2001 14:28:24 Obrazová galerie BOHR Niels - ENGLISH Niels Henrik David Bohr byl dánský fyzik, žijící v letech 1885 - 1962. Byl èlenem mnoha akademií vìd v zahranièí, od roku 1961 èestným profesorem Lomonosov ovy univerzity v Moskvì, byl jedním z nejvýznamìjších vìdcù 20. století. V roce 1922 obdržel Nobelovu cenu za výzkumy a model atomu.

8. BOHR  Niels - ENGLISH
   Last updated 05.08.2001 063402. Niels Bohr was born in Copenhagenin Denmark in 1885. His father was a professor of physiology  
   http://www.volny.cz/michal_bachman/bohren.htm
   
   Extractions: Last updated: 05.08.2001 06:34:02 Niels Bohr was born in Copenhagen in Denmark in 1885. His father was a professor of physiology at the University of Copengagen. Niels attended the same university and was a distinguished soccer player as well as a brilliant student. Bohr studied at J. J. Thomson ´s Cavendish Laboratory and at Rutherford ´s laboratory. At the young age of 28, while working with Rutherford, he invented the first effective model and theory of the structure of the atom. His work ranks as one of the truly great examples of an imaginative mind at work. He was awarded the 1922 Nobel Prize for physics for his study of the structure of atoms. During Worls War 2, Bohr and his family escaped from occupied Denmark to the United States. He and his son, Aage, acted as advisers at the Los Alomos Atomic Laboratories, where the atom bomb was developed. Thereafter, Bohr concerned himself with developing peaceful uses of nuclear energy. Aage Bohr, Neil´s son was awarded the Nobel Prize for physics in 1975.

9. Bohr
   Niels Henrik David Bohr. His Son Aage Niels Bohr (1922 ) is a Nuclear Physicist 1975 Nobel Prize Winner . 1975 Nobel Prize in Physics was awarded to  
   http://physics.hallym.ac.kr/course/97/qm97-1/pioneer/Bohr.html
   
   Extractions: hv = E n - E n 1903³â¿¡ Copenhagen´ëÇп¡ ÀÔÇÐÇÏ¿© °øºÎÇÏ¿´°í, 1911³â¿¡ ±Ý¼ÓÀÇ ÀüÀÚ À̷п¡ °üÇÑ ¿¬±¸·Î ¹Ú»çÇÐÀ§¸¦ ¹Þ¾Ò´Ù. ±×ÈÄ Cambridge ´ëÇп¡¼­ J. J. Thomson°ú °°ÀÌ ÀÏÇÏ´Ù 1912³â Manchester·Î °¡¼­ Ernest RutherfordÀÇ group¿¡ ÇÕ·ùÇÏ¿© ¿øÀÚÀÇ ±¸Á¶¿¡ °üÇÑ ¿¬±¸¸¦ ÇÏ¿´´Ù. ±×´Â ¿øÀÚ´Â ºÒ¿¬¼ÓÀûÀΠƯÁ¤ ¿¡³ÊÁö °ªÀ» °¡Áú ¶§¸¸ ¾ÈÁ¤µÈ »óŸ¦ ÀÌ·ê ¼ö ÀÖÀ» °ÍÀ¸·Î »ý°¢ÇÏ¿´´Ù. ´Ù½Ã CopenhagenÀ¸·Î µ¹¾Æ¿Í 1913³â¿¡ ¿øÀÚÀ̷п¡ °üÇÑ ÁÖ¿ä ³í¹® 3ÆíÀ» ¹ßÇ¥ÇÏ¿´´Âµ¥, ù¹ø° ³í¹®Àº ¼ö¼Ò¿øÀÚ¸¦, ³ª¸ÓÁö µÎÆíÀº º¸´Ù ¹«°Å¿î ¿øÀÚ¸¦ ´Ù·é °ÍÀÌ´Ù. BohrÀÇ ¼ö¼Ò¿øÀÚ ¸ðÇü¿¡¼­´Â ÀüÀÚÀÇ °¢¿îµ¿·®ÀÌ Planck »ó¼ö ( h )ÀÇ Á¤¼ö¹è À϶§ (À§ÀÇ Ã¹Â°½Ä) ¿øÀÚ°¡ ¾ÈÁ¤ÇÑ »óŸ¦ ÀÌ·é´Ù°í °¡Á¤ÇÑ °ÍÀÌ°í, À̷κÎÅÍ ¿øÀÚ°¡ °¡Áú ¼ö ÀÖ´Â ºÒ¿¬¼ÓÀûÀÎ ¿¡³ÊÁö°ªµéÀÌ ¾ò¾îÁø´Ù. ¼ö¼Ò¿øÀÚÀÇ spectrumÀº ¿øÀÚ°¡ ³ôÀº ¿¡³ÊÁö »óÅ¿¡¼­ ³·Àº ¿¡³ÊÁö »óÅ·ΠõÀÌÇÒ ¶§ ÁÙ¾îµç ¿¡³ÊÁö ¸¸Å­ÀÇ ¿¡³ÊÁö¸¦ °¡Áø ºûÀÌ ³ª¿À´Â °ÍÀ¸·Î ¼³¸íÇϸé (À§ÀÇ µÎ°½Ä: ³ª¿À´Â ºûÀÇ ¿¡³ÊÁö´Â PlanckÀÇ ¾çÀÚ°¡¼³À» äÅÃ) ½ÇÇèÀûÀÎ »ç½Çµé°ú ÀÏÄ¡ÇÑ´Ù. ÀÌ·¸°Ô ÇÏ¿© Bohr´Â ¼ö¼Ò¿øÀÚ spectrumÀ» ¼º°øÀûÀ¸·Î ¼³¸íÇÒ ¼ö ÀÖ¾ú´Ù. Copenhagen°ú Manchester ´ëÇп¡¼­ lecturer·Î ÀÏÇÏ´Ù, 1916³â ºÎÅÍ Copenhagen´ëÇÐÀÇ À̷й°¸®ÇÐ ¼®Á±³¼öÁ÷¿¡ ÃëÀÓÇÏ¿´À¸¸ç, 1921³â °°Àº ´ëÇп¡ ±×¸¦ À§ÇÑ À̷й°¸®¿¬±¸¼Ò°¡ ¼¼¿öÁ® Ÿ°èÇÒ ¶§±îÁö ¼ÒÀåÁ÷À» ¼öÇàÇÏ¿´´Ù.

10. Xrefer - Search Results - Niels Bohr
    next results page . bohr niels 1885 1962. bohr niels 1885 1962 Danish physicist.The Oxford Dictionary of Quotations. Bohr Aage Niels 1922. bohr niels 1885 1962.  
    http://www.xrefer.com/results.jsp?shelf=&term=Niels Bohr

11. BOHR Niels Henrik David
    Niels Henrik David Bohr byl dánský fyzik, žijící v letech 1885 1962. Byl clenem mnoha akademií ved v zahranicí, od roku  
    http://nobelsoftware.com/vedci/bohr.htm
    
    Extractions: Last updated: 25.05.2001 14:28:24 Obrazová galerie BOHR Niels - ENGLISH Niels Henrik David Bohr byl dánský fyzik, žijící v letech 1885 - 1962. Byl èlenem mnoha akademií vìd v zahranièí, od roku 1961 èestným profesorem Lomonosov ovy univerzity v Moskvì, byl jedním z nejvýznamìjších vìdcù 20. století. V roce 1922 obdržel Nobelovu cenu za výzkumy a model atomu.

12. Niels Henrik David Bohr
    Niels Henrik David Bohr. The Danish physicist Niels Henrik DavidBohr, b. Oct. 7, 1885, d. Nov. 18, 1962, is known primarily for  
    http://www.phy.hr/~dpaar/fizicari/xbohr.html

13. Bohr Niels
    danoise; Physicien; Niels Bohr est le père de Aage Bohr. Il a  
    http://hebergement.ac-poitiers.fr/l-jv-larochelle/site_eleves_2/Pages/francais/s

14. Niels Bohr - Wikipedia
    Niels Bohr. From Wikipedia, the free encyclopedia. Niels Henrik DavidBohr (October 7, 1885 November 18, 1962) was a Danish physicist.  
    http://www.wikipedia.org/wiki/Niels_Bohr
    
    Extractions: Main Page Recent changes Edit this page Older versions Special pages Set my user preferences My watchlist Recently updated pages Upload image files Image list Registered users Site statistics Random article Orphaned articles Orphaned images Popular articles Most wanted articles Short articles Long articles Newly created articles Interlanguage links All pages by title Blocked IP addresses Maintenance page External book sources Printable version Talk Other languages: Nederlands Dansk Deutsch From Wikipedia, the free encyclopedia. Niels Henrik David Bohr October 7 November 18 ) was a Danish physicist . He made essential contributions to understanding atom structure and quantum mechanics Born in Copenhagen, Denmark to Christian Bohr and Ellen Adler , Bohr got his doctorate at Copenhagen University in . He then studied under Ernest Rutherford in Manchester England . Based on Rutherford's theories, Bohr published his Bohr model about atom structure in , 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. Also, an electron could drop from an outer orbit to an inner one, emitting a

15. Physiker Bei Multimedia- Physik
    Translate this page Bohr, Niels - Bohr - Niels Bohr - bohr niels Bohr (DK) - Niels Bohr Bohr, Niels,Henrik, David Niels Bohr Library AIP Center for History of Physics - top site  
    http://didaktik.physik.uni-wuerzburg.de/~pkrahmer/home/namen.html

16. Niels Bohr
    Niels Bohr The Old Quantum Theory. Niels Bohr (1885 1962) was a youngpost-doctoral fellow from Denmark working with Ernest Rutherford  
    http://www.chembio.uoguelph.ca/educmat/chm386/rudiment/tourquan/bohr.htm
    
    Extractions: The Old Quantum Theory Niels Bohr (1885 - 1962) was a young post-doctoral fellow from Denmark working with Ernest Rutherford in England during these heady days of discovery. The experimental feature plaguing their minds was the structure of the atom. How could the electrons orbit the nucleus and not lose energy? Why was this configuration stable? Look here for a brief presentation of the derivation of his theory. The atom that Bohr envisioned had these stable orbits because of quantization of the angular momentum. The resulting image, such as at right, is the one with which the world is most familiar when discussing atomic structure, namely, small electron balls whizzing around a central nucleus. But why was it quantized? And his theory provided no means for calculating the intensities of these atomic lines - only their positions. And of course there was no concept of chemical bonding or any further explanations beyond the hydrogen atom. And yet, his success was indisputable. Where was the connection? Author: Dan Thomas email:

17. Niels Bohr | Physicist
    Brief biography and book references.  
    http://www.lucidcafe.com/library/95oct/nbohr.html
    
    Extractions: Niels Bohr Niels Bohr was born on October 7, 1885 in Copenhagen, Denmark. Bohr made numerous contributions to our understanding of atomic structure and quantum mechanics. He won the 1922 Nobel Prize for physics, chiefly for his work on the structure of atoms. Bohr received his doctorate in physics from the University of Copenhagen in 1911. He then traveled to Manchester, England to study under British physicist Ernest Rutherford. In 1913 Bohr published a theory about the structure of the atom based on an earlier theory of Rutherford's. Rutherford had shown that the atom consisted of a positively charged nucleus, with negatively charged electrons in orbit around it. Bohr expanded upon this theory by proposing that electrons travel only in certain successively larger orbits. He suggested 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 when an electron jumps from an outer orbit to an inner one, that it emits light. Later other physicists expanded his theory into quantum mechanics. This theory explains the structure and actions of complex atoms. Bohr became a professor of physics at the University of Copenhagen in 1916. In 1920 Bohr was named director of the newly constructed "Institute of Theoretical Physics" at the University. Bohr became a Fellow of the Royal Society of London in 1926, receiving the Royal Society Copley Medal in 1938. During World War II, Bohr fled Copenhagen to escape the Nazis. He traveled to Los Alamos, New Mexico to advise the scientists developing the first atomic bomb. He returned to Copenhagen after the war and later promoted the peaceful use of atomic energy.

18. Niels Bohr Archive
    A repository of primary material for the history of modern physics, pertaining in particular to the early development of quantum mechanics and the life and career of niels bohr. News, collections, library, publications and seminars.  
    http://www.nba.nbi.dk/
    
    Extractions: DOCUMENTS RELEASED 6 FEBRUARY 2002 The family of Niels Bohr has decided to release all documents deposited at the Niels Bohr Archive, either written or dictated by Niels Bohr, pertaining specifically to the meeting between Bohr and Heisenberg in September 1941. There are in all eleven documents. The decision has been made in order to avoid possible misunderstandings regarding the contents of the documents. The documents supplement and confirm previously published statements of Bohr's recollections of the meeting, especially those of his son, Aage Bohr. The documents have now been organised, transcribed and translated into English at the Niels Bohr Archive. Because of the overwhelming interest in the material, it has been decided that the material should be published in full instead of being made available to scholars upon individual application, as is normal practice at the Niels Bohr Archive. This has been done by placing facsimiles, transcriptions and translations on this website

19. Physics 1922
    For investigations of the structure of atoms and their radiation. Includes biography and presentation Category Science Physics History People bohr, niels niels Henrik David bohr. Denmark. The Nobel Prize in Physics 1922 Presentation Speechniels bohr Biography Nobel Lecture Swedish Nobel Stamps Other Resources.  
    http://www.nobel.se/physics/laureates/1922/

20. Niels Bohr - Biography
    niels Henrik David bohr was born in Copenhagen on October 7, 1885, as the son of Christian bohr, Professor of Physiology  
    http://www.nobel.se/physics/laureates/1922/bohr-bio.html
    
    Extractions: Niels Henrik David Bohr was born in Copenhagen on October 7, 1885, as the son of Christian Bohr, Professor of Physiology at Copenhagen University , and his wife Ellen, Adler. Niels, together with his younger brother Harald (the future Professor in Mathematics), grew up in an atmosphere most favourable to the development of his genius - his father was an eminent physiologist and was largely responsible for awakening his interest in physics while still at school, his mother came from a family distinguished in the field of education. While still a student, the announcement by the Academy of Sciences in Copenhagen of a prize to be awarded for the solution of a certain scientific problem, caused him to take up an experimental and theoretical investigation of the surface tension by means of oscillating fluid jets. This work, which he carried out in his father's laboratory and for which he received the prize offered (a gold medal), was published in the Transactions of the Royal Society, 1908.

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