Reference > The New Dictionary of Cultural Literacy > 19. Physical Sciences and Mathematics
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  The New Dictionary of Cultural Literacy, Third Edition.  2002.
 
x-ray
 
 
A form of electromagnetic radiation with very high frequency and energy. X-rays lie between ultraviolet radiation and gamma radiation on the electromagnetic spectrum.  1
‡ Because x-rays can travel through solid material and affect photographic plates, they are widely used in diagnosing medical problems.  2
‡ Objects in the sky also send out x-rays in processes that use very high energy.  3
 
 
The New Dictionary of Cultural Literacy, Third Edition. Edited by E.D. Hirsch, Jr., Joseph F. Kett, and James Trefil. Copyright © 2002 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

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