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Category: Science
Word Count: 1553
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S O N A R

SONAR stands for SOund NAvigation Ranging. Sound travels through fresh water at a speed approximately 4920 feet per second. What a sonar device (depth finder / fish finder) does is to measure the amount of time for a burst of energy to travel to bottom and return to surface. This time variation is then displayed on the readout of your sonar device by means of flashing lights, Liquid Crystal Display (LCD), or Cathode Ray Tube (TV screen). When the depth gets deeper the time of travel for the soun
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