Moseley, after discussions with Bohr who was at the same lab ( and who had used Van den Broek's hypothesis in his Bohr model of the atom ), decided to test Van den Broek and Bohr's hypothesis directly, by seeing if spectral lines emitted from excited atoms fit the Bohr theory's demand that the frequency of the spectral lines be proportional to a measure of the square of Z.

While in the US, Bohr married Marietta Soffer ; the couple had three children, Vilhelm, Tomas and Margrethe.

Bohr, visiting Columbia at the time, had independently conceived the same idea, and submitted a paper for publication about a month after Rainwater's which discussed the same problem along more general lines.

The Soviet scientists had suggested this name be given to element 105 ( which was finally called dubnium ) and the German team wished to recognise both Bohr and the fact that the Dubna team had been the first to propose the cold fusion reaction.

In the early work of Max Planck, Albert Einstein and Niels Bohr, the existence of energy in discrete quantities had been postulated, in order to explain phenomena, such as the spectrum of black-body radiation, the photoelectric effect, and the stability and spectrum of atoms such as hydrogen, that had eluded explanation by, and even appeared to be in contradiction with, classical physics.

Werner Heisenberg had been an assistant to Niels Bohr at his institute in Copenhagen during part of the 1920s, when they helped originate quantum mechanical theory.

Dutch physicists Hendrik B. G. Casimir and Dirk Polder at Philips Research Labs proposed the existence of a force between two polarizable atoms and between such an atom and a conducting plate in 1947, and, after a conversation with Niels Bohr who suggested it had something to do with zero-point energy, Casimir alone formulated the theory predicting a force between neutral conducting plates in 1948 ; the former is called the Casimir-Polder force while the latter is the Casimir effect in the narrow sense.

In that period, Niels Bohr was on a lecture engagement at the Princeton University and I remember one afternoon Willis Lamb came back very excited and said that Bohr had leaked out great news.

However, one of the main scientists associated with the Copenhagen interpretation, Niels Bohr, never had in mind the observer-induced collapse of the wave function, so that Schrödinger's Cat did not pose any riddle to him.

He also met John C. Slater, who had worked with Niels Bohr.

The Institute was founded in 1921, as the Institute for Theoretical Physics of the University of Copenhagen, by the Danish theoretical physicist Niels Bohr, who had been on the staff of the University of Copenhagen since 1914, and who had been lobbying for its creation since his appointment as professor in 1916.

The principle was formulated by Niels Bohr in 1920, though he had previously made use of it as early as 1913 in developing his model of the atom.

Physicists had no convincing theory to explain this until Bohr and complementarity came along.

While in Cutchogue on August 2, 1939, pipe-smoking Einstein was visited by fellow Jewish physicists from Hungary Leo Szilard ( who had produced a nuclear chain reaction in a laboratory at Columbia University ) and Eugene Wigner ( who both had been put up to it by Niels Bohr, and found his house after asking directions from a 7-year-old boy on the street ), and signed the famous July 16 Letter to President Roosevelt, alerting him to the new developments in nuclear physics and hinting that the Germans might be working on an atomic bomb, urging him to launch his own program.

Niels Bohr ( 1885 – 1962 ), the Danish physicist and one of the principle founders of quantum mechanics, had indeed hung in his office a large painting by Jean Metzinger, La Femme au Cheval ( Woman with a horse, The Rider ) 1911-12 ( now in the Statens Museum for Kunst, National Gallery of Denmark ).

In 1950 – 51, James Rainwater and Aage Bohr had developed models of the atomic nucleus which began to take into account the behaviour of the individual nucleons.

This brought Slater's observation concerning the mechanical properties of ionic crystals into line with the theory that Bohr had based on the spectroscopy of gaseous elements.

Still, the Bohr model's use of quantized angular momenta and therefore quantized energy levels was a significant step towards the understanding of electrons in atoms, and also a significant step towards the development of quantum mechanics in suggesting that quantized restraints must account for all discontinuous energy levels and spectra in atoms.

Constant angular momentum is extremely useful when dealing with the orbits of planets and satellites, and also when analyzing the Bohr model of the atom.

Still, Thomson's model ( along with a similar Saturnian ring model for atomic electrons, also put forward in 1904 by Nagaoka after James Clerk Maxwell's model of Saturn's rings ), were earlier harbingers of the later and more successful solar-system-like Bohr model of the atom.

The solution of the Schrödinger equation goes much further than the Bohr model, because it also yields the shape of the electron's wave function (" orbital ") for the various possible quantum-mechanical states, thus explaining the anisotropic character of atomic bonds.

The physical interpretation of the theory was also clarified in these years after Werner Heisenberg discovered the uncertainty relations and Niels Bohr introduced the idea of complementarity.

Through the work of Max Planck, Albert Einstein, Louis de Broglie, Arthur Compton, Niels Bohr, and many others, current scientific theory holds that all particles also have a wave nature ( and vice versa ).

Bohr also took an active interest in the philosophical implications of quantum theories such as his complementarity, for example.

" Majorana also travelled to Copenhagen, where he worked with Niels Bohr, another Nobel Prize winner, and a friend and mentor of Heisenberg.

during a political disaster ", dated 1937-1941, a reader can hear speaking such persons as Erwin Schrödinger, Niels Bohr, Albert Einstein or Max Planck, not only about physics, but also about many other

Bohr answered Einstein's challenge by pointing out that, in accordance with the principle of complementarity, one of Einstein assumptions, regarding the act of measurement, is not true in quantum mechanics: a quantum mechanical measurement not only states, but also prepares the physics of a system:

Wheeler also worked with Niels Bohr in explaining the basic principles behind nuclear fission.

But the principle of uncertainty ( also called complementarity by Bohr )

In alkalosis, hemoglobin binds more securely to the oxygen (' alkalotic O₂ clamping ', also called the ' Bohr effect '), so the patient's cells become relatively hypoxic.

The Bohr compactification also reduces many problems in the theory of almost periodic functions on topological groups to that of functions on compact groups.

By assuming blackbody radiation is quantized, Bohr showed that the atoms were also quantized, in the sense that they could only emit discrete amounts of energy.

Hart also substituted Niels Bohr and Henri Becquerel with Ernest Rutherford, thus correcting an error in the first edition.

Scattering experiments are sometimes also called complementary when they investigate the same physical property of a system from two complementary view points in the sense of Bohr.

Bohr and Pauli claim that this lens leads to aberration when applied to ions with spin ( in the sense of chromatic aberration ), but not when applied to electrons, which also have a spin.

) They are also used to suggest Heisenberg ’ s speed and recklessness which contrasts Bohr ’ s caution and tediousness.

An important example of a logarithmically convex function is the gamma function on the positive reals ( see also the Bohr – Mollerup theorem ).

These energy levels can be calculated with reasonable accuracy using the Einstein – Brillouin – Keller method, which is also the basis of the Bohr model of atomic hydrogen .< ref name =" knudson_2006 " >< ref name =" strand_1979 " > More recently, as explained further in the quantum-mechanical version, analytical solutions to the eigenenergies have been obtained: these are a generalization of the Lambert W function.

All properties of physical entities exist only in pairs, which Bohr described as complementary or conjugate pairs ( which are also Fourier transform pairs ).

The parallel alignment corresponds to the lower energy state, and the separation between it and the upper state is, where is the electron's so-called g-factor ( see also the Landé g-factor ) and is the Bohr magneton.

In 1921, a visit by Niels Bohr to Cambridge inspired Douglas to apply his numerical skills to Bohr ’ s theory of the atom, for which he obtained his Ph. D. in 1926-his advisor was Ernest Rutherford.