Posts by David Freeman
Which the Soviets were doing in 1947 (kinda): Laser microphone
Which the Soviets were doing in 1947 (kinda): Laser microphone History: The technique of using a light beam to remotely record sound probably origina...
Which the Soviets were doing in 1947 (kinda): Laser microphone History: The technique of using a light beam to remotely record sound probably origina...
Trending Topics
© 2015