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protoplanet theory
(Encyclopedia)protoplanet theory: see solar system. ...BCS theory
(Encyclopedia)BCS theory: see superconductivity. ...number theory
(Encyclopedia)number theory, branch of mathematics concerned with the properties of the integers (the numbers 0, 1, −1, 2, −2, 3, −3, …). An important area in number theory is the analysis of prime number...phlogiston theory
(Encyclopedia)phlogiston theory flōjĭsˈtŏn [key], hypothesis regarding combustion. The theory, advanced by J. J. Becher late in the 17th cent. and extended and popularized by G. E. Stahl, postulates that in all...communication theory
(Encyclopedia)communication theory: see information theory. ...chaos theory
(Encyclopedia)chaos theory, in mathematics, physics, and other fields, a set of ideas that attempts to reveal structure in aperiodic, unpredictable dynamic systems such as cloud formation or the fluctuation of biol...electroweak theory
(Encyclopedia)electroweak theory, a unified field theory that describes two of the fundamental forces in nature, electromagnetism (see electromagnetic radiation) and the weak interaction. The electroweak theory der...domino theory
(Encyclopedia)domino theory, the notion that if one country becomes Communist, other nations in the region will probably follow, like dominoes falling in a line. The analogy, first applied (1954) to Southeast Asia ...encounter theory
(Encyclopedia)encounter theory, in astronomy, see solar system. ...tidal theory
(Encyclopedia)tidal theory: see solar system.Browse by Subject
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