Article
Article
Radiation
Article By:
Hull, McAllister H., Jr. Formerly, Department of Physics, University of New Mexico, Albuquerque, New Mexico.
Last reviewed:June 2019
DOI:https://doi.org/10.1036/1097-8542.566300
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The emission and propagation of energy; also, the emitted energy itself. Radiation is a ubiquitous phenomenon that transfers energy and matter from one place to another. The major types of radiation are electromagnetic (Fig. 1), particle, acoustic, and gravitational. Within these major divisions there are many subdivisions. See also: Energy; Matter (physics)
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