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TeachMeFinance.com - explain X-Rays X-Rays The term 'X-Rays' as it applies to the area of nuclear science can be defined as ' Penetrating electromagnetic radiation (photon) having a wavelength that is much shorter than that of visible light. These rays are usually produced by excitation of the electron field around certain nuclei. In nuclear reactions, it is customary to refer to photons originating in the nucleus as x-rays. '. The term 'X-Rays' as it applies to the area of the weather can be defined as ' Very energetic electromagnetic radiation with wavelengths intermediate between 0.01 and 10 nanometers (0.1-100 Angstroms) or between gamma rays and ultraviolet radiation. Essentially all X-Rays from space are absorbed in the Earth's upper atmosphere'. Previous 5 Terms: XPC x-ray X-Ray Background X-Ray Burst X-Ray Flare Class Next 5 Terms: XSEC xylary Xylene (C6H4(CH3)2) xylogenous xylography About the author Mark McCracken Author: Mark McCracken is a corporate trainer and author living in Higashi Osaka, Japan. He is the author of thousands of online articles as well as the Business English textbook, "25 Business Skills in English". Copyright © 2005-2011 by Mark McCracken, All Rights Reserved. TeachMeFinance.com is an informational website, and should not be used as a substitute for professional medical, legal or financial advice. Information presented at TeachMeFinance.com is provided on an "AS-IS" basis. Please read the disclaimer for details.