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Fiber Optics
Essay specific features
Written by:
Leroy C
Date added:
February 12, 2015
Level:
University
Grade:
A
No of pages / words:
6 / 1504
Was viewed:
9805 times
Rating of current essay:
Essay content:
Here he used the well-known signal "one if by land, two if by sea." Although primitive, this was still optical communication and we must give him credit for it. Another contender was Alexander Gram Bell and his photophone (slide 3). With this device, one person would speak into a microphone causing a mirror to vibrate...
displayed 300 characters
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Another contender was Alexander Gram Bell and his photophone (slide 3). With this device, one person would speak into a microphone causing a mirror to vibrate. Then sunlight would reflect off the vibrating mirror and hit another mirror 200 meters away. This mirror would then cause a selenium crystal to vibrate and sound would come out the other end...
displayed 300 characters
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