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TeachMeFinance.com - explain altimeter, laser altimeter, laser The term 'altimeter, laser' as it applies to the area of coastlines can be defined as ' an instrument that determines altitude by measuring the length of time needed for a pulse of coherent light to travel from the instrument to the surface and back, and multiplies half this time by the speed of light to get the straight-line distance to the surface'. Previous 5 Terms: Alternatives ALTHO altimeter altimeter Altimeter Setting Next 5 Terms: altithermal period altitude of a geometric figure Altocumulus Altostratus Alum 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.