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For examples of things measuring between one and ten femtometres, see. Femtometre Unit of Symbol fm Conversions 1 fm in. 000000000♠1 ×10 −00♠6.1877 ×00000♠1.8897 ×10 −5 / units 3.9370 ×10 −14 The femtometre (American spelling femtometer, symbol fm derived from the Danish and Norwegian word femten, 'fifteen'+: μέτρον, metrοn, 'unit of measurement') is an unit of equal to 10 −15, which means a quadrillionth of one.

This distance can also be called a fermi and was so named in honour of physicist, as it is a typical length-scale of. Definition and equivalents [ ] 1000 = 1 femtometre = 1 fermi = 0.001 = 000000000♠1 ×10 −00♠1 000 000 femtometres = 10 = 1. For example, the charge of a is approximately 0.84–0.87 femtometres while the radius of a is approximately 8.45 femtometres. 1 = 100 fm 2 History [ ] The femtometre was adopted by the 11th, and added to SI in 1. The fermi is named after the (1901–1954), one of the founders of nuclear physics. The term was coined by in a 1956 paper published in entitled 'Electron Scattering and Nuclear Structure'. The term is widely used by nuclear and physicists.

Solids with a large density of states at the Fermi level become unstable at low temperatures and tend to form ground states where the condensation energy comes from opening a gap at the Fermi surface. Aleksandr Nikolaevich Benua, xudozhnik, istorik iskusstva, xudozhestvenniy i teatralniy kritik, dva toma svoey avtobiografii posvyashchaet povesti o svoem detstve i yunosti, protekavshix na fone togo starogo Peterburga i ego znamenitix okrestnostey, kotorie pozzhe, v zreliy period ego zhizni, stali istochnikami ego tvorcheskogo vdoxnoveniya i obespechili emu odno iz pervix mest sredi.

[ ] When Hofstadter was awarded the 1961 Nobel Prize in Physics, it subsequently appears in the text of his 1961 Nobel Lecture, 'The electron-scattering method and its application to the structure of nuclei and nucleons' (December 11, 1961). References [ ].

• • Signature Enrico Fermi ( Italian:; 29 September 1901 – 28 November 1954) was an Italian and naturalized-American physicist and the creator of the world's first, the. He has been called the 'architect of the ' and the 'architect of the atomic bomb'.

He was one of very few physicists to excel in both. Fermi held several patents related to the use of nuclear power, and was awarded the 1938 for his work on by neutron bombardment and for the discovery of. He made significant contributions to the development of,,.

Fermi's first major contribution involved the field of. After formulated his in 1925, Fermi followed with a paper in which he applied the principle to an, employing a statistical formulation now known as. Today, particles that obey the exclusion principle are called '. Pauli later postulated the existence of an uncharged invisible particle emitted along with an during, to satisfy the law of. Fermi took up this idea, developing a model that incorporated the postulated particle, which he named the '.

His theory, later referred to as and now called, described one of the four in nature. Through experiments inducing radioactivity with the recently discovered, Fermi discovered that were more easily by than fast ones, and he developed the to describe this. After bombarding and with slow neutrons, he concluded that he had created new elements. Although he was awarded the Nobel Prize for this discovery, the new elements were later revealed to be. Fermi left Italy in 1938 to escape new that affected his Jewish wife,.

He emigrated to the United States, where he worked on the during World War II. Fermi led the team that designed and built Chicago Pile-1, which went on 2 December 1942, demonstrating the first human-created, self-sustaining. He was on hand when the at, went critical in 1943, and when the at the did so the next year. Torrent tangirnie setki. At, he headed F Division, part of which worked on 's ' bomb. He was present at the on 16 July 1945, where he used his to estimate the bomb's yield. After the war, Fermi served under on the General Advisory Committee, which advised the on nuclear matters. After the detonation of the first Soviet in August 1949, he strongly opposed the development of a hydrogen bomb on both moral and technical grounds.