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Freeman John Dyson FRS (15 December 1923 – 28 February 2020) [1] was a British-American theoretical physicist and mathematician known for his works in quantum field theory, astrophysics, random matrices, mathematical formulation of quantum mechanics, condensed matter physics, nuclear physics, and engineering.
Freeman Dyson performed the first analysis of what kinds of Orion missions were possible to reach Alpha Centauri, the nearest star system to the Sun. [26] His 1968 paper "Interstellar Transport" ( Physics Today ) [ 27 ] retained the concept of large nuclear explosions but Dyson moved away from the use of fission bombs and considered the use of ...
Freeman Dyson proposed that trans-Neptunian objects, rather than planets, are the major potential habitat of life in space. [ citation needed ] Several hundred billion to trillion comet -like ice-rich bodies exist outside the orbit of Neptune , in the Kuiper belt and Inner and Outer Oort cloud .
A nuclear fusion or fission powered ship (e.g. ion drive) of some kind, achieving velocities of up to perhaps 10% c permitting one-way trips to nearby stars with durations comparable to a human lifetime. A Project Orion-ship, a nuclear-powered concept proposed by Freeman Dyson which would use nuclear explosions to propel a starship. A special ...
Download as PDF; Printable version; In other projects Wikidata item; ... Pages in category "Works by Freeman Dyson" The following 4 pages are in this category, out of ...
In his paper "The S-Matrix in Quantum electrodynamics", [1] Dyson derived relations between different S-matrix elements, or more specific "one-particle Green's functions", in quantum electrodynamics, by summing up infinitely many Feynman diagrams, thus working in a perturbative approach.
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Freeman Dyson is a British theoretical physicist and mathematician famous for his influence in a number of fields. The main article for this category is Freeman Dyson . Wikimedia Commons has media related to Freeman Dyson .