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Laser Microphones: The Soviet Spy Technology that’s Making a Comeback
Laser Microphones: The Soviet Spy Technology that’s Making a Comeback
What is a Laser Microphone? Laser microphones are any device that uses a laser or optical beam to recover audio information, largely these devices use mechanical disturbance of the laser’s beam ...
Telescopes from Invention to Today
Telescopes from Invention to Today
Telescopes serve as a gateway to discovery. They capture the imagination of children and professionals alike. The development of telescopes has led to countless discoveries, both terrestrial and ...