a.a. michelson

Science Dictionary
Michelson   (mī'kəl-sən)  Pronunciation Key 
German-born American physicist who (with Edward Morley) disproved the existence of ether, the hypothetical medium of electromagnetic waves. Their work served as the starting point for Albert Einstein's development of the theory of relativity.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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