reference frame

reference frame

noun Physics.

Origin:
1920–25
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Reference frame is always a great word to know.
So is nuclear radiation. Does it mean:
radiation in the form of elementary particles emitted by an atomic nucleus produced by decay of radioactive substances or by nuclear fission
radiation consisting of electromagnetic waves, including radio waves, infrared, visible light, ultraviolet, x-rays, and gamma rays
American Heritage
Science Dictionary
reference frame   (rěf'ər-əns)  Pronunciation Key 
A basis of a four-dimensional coordinate system in which the first coordinate is understood as a time coordinate, while the other three coordinates represent spatial dimensions. Inertial frames and non-inertial frames are both examples of reference frames. Also called frame of reference. See also General Relativity, space-time, Special Relativity.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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