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Atomic theory is one of the most important scientific developments in history, crucial to all the physical sciences. At the start of The Feynman Lectures on Physics , physicist and Nobel laureate Richard Feynman offers the atomic hypothesis as the single most prolific scientific concept.
He described atomic theory as a 'Thoroughly materialistic bit of joiners work'. [77] English chemist Alexander Williamson used his Presidential Address to the London Chemical Society in 1869 [78] to defend the atomic theory against its critics and doubters. This in turn led to further meetings at which the positivists again attacked the ...
1982 – The documentary film The Atomic Cafe, detailing society's attitudes toward the atomic bomb in the early Atomic Age, debuted to widespread acclaim. 1982 – Jonathan Schell's book Fate of the Earth, about the consequences of nuclear war, is published. The book "forces even the most reluctant person to confront the unthinkable: the ...
He also made important contributions to the theories of the hydrodynamics of turbulent flows, the atomic nucleus, ferromagnetism, cosmic rays, and subatomic particles, and he was instrumental in planning the first West German nuclear reactor at Karlsruhe, together with a research reactor in Munich, in 1957. Considerable controversy surrounds ...
The term atomic physics can be associated with nuclear power and nuclear weapons, due to the synonymous use of atomic and nuclear in standard English. Physicists distinguish between atomic physics—which deals with the atom as a system consisting of a nucleus and electrons—and nuclear physics , which studies nuclear reactions and special ...
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Thomson's model marks the moment when the development of atomic theory passed from chemists to physicists. While atomic theory was widely accepted by chemists by the end of the 19th century, physicists remained skeptical because the atomic model lacked any properties which concerned their field, such as electric charge, magnetic moment, volume, or absolute mass.
1936 Eugene Wigner develops the theory of neutron absorption by atomic nuclei; 1936 Hermann Arthur Jahn and Edward Teller present their systematic study of the symmetry types for which the Jahn–Teller effect is expected [8] 1937 Carl Anderson proves experimentally the existence of the pion predicted by Yukawa's theory.