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TeachMeFinance.com - explain electromagnetic spectrum electromagnetic spectrum The term 'electromagnetic spectrum' as it applies to the area of Earth observation can be defined as ' The entire range of radiant energies or wave frequencies from the longest to the shortest wavelengths--the categorization of solar radiation. Satellite sensors collect this energy, but what the detectors capture is only a small portion of the entire electromagnetic spectrum. The spectrum usually is divided into seven sections: radio, microwave, infrared, visible, ultraviolet, x-ray, and gamma-ray radiation'. Previous 5 Terms: electrogenesis electrograph electrology Electrolyte Electromagnetic radiation Next 5 Terms: electromagnetic wave electrometer Electromotive force (EMF) electromyograph Electron 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.