a: sonar ~
b: audio spotlight
What:
A sound spot light it is like. A sonar sends out audio waves into the water. When those waves encounter a solid object, like a ship or the bottom of the ocean, the waves are reflected. A spotlight is pointed at someone on a dark stage to illuminate them. The projected light is reflected by the subject and they become visible in the darkness.
Useful?
Writer: Lucretia
LCC:
Where: Reference Link Has Evaporated
Date: Jan 3 2015 4:44 PM
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