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Arrow of time

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The arrow of time, also called time's arrow, is the concept positing the "one-way direction" or "asymmetry" of time. It was developed in 1927 by the British astrophysicist Arthur Eddington, and is an unsolved general physics question. This direction, according to Eddington, could be determined by studying the organization of atoms, molecules, and bodies, and might be drawn upon a four-dimensional relativistic map of the world ("a solid block of paper").The Arrow of Time paradox was originally recognized in the 1800s for gases (and other substances) as a discrepancy between microscopic and macroscopic description of thermodynamics / statistical Physics: at the microscopic level physical processes are believed to be either entirely or mostly time-symmetric: if the direction of time were to reverse, the theoretical statements that describe them would remain true. Yet at the macroscopic level it often appears that this is not the case: there is an obvious direction (or flow) of time.

Arrow of time - Wikipedia Jump to content From Wikipedia, the free encyclopedia Concept in physics of one-way time For other uses, see Arrow of time (disambiguation) . This article is an overview of the subject. For a more technical discussion and for information related to current research, see Entropy (arrow of time) . "The Arrow of Time" redirects here. For the soundtrack for Timelapse of the Future, see Timelapse of the Future § Soundtrack . Sir Arthur Stanley Eddington (1882–1944) The arrow of time , also called time's arrow , is the concept positing the "one-way direction" or " asym

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