AP Historical Hard Drive 2007
EN_00945120_2193
Dr. Charles H. Townes, professor of physics at Columbia University, left, and his associate, Dr. J.P. Gordon, are pictured with the first maser, 1954. Maser stands for Microwave Amplification by Stimulated Emission of Radiation, a device used to amplify or generate microwaves, using stimulated emission. (AP Photo)
Minimum price 50PLN
1953-11-30
ASSOCIATED PRESS/East News
Associated Press
999404
1,38MB
25cm x 20cm by 300dpi
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