Sound Navigation and Ranging
SOund Navigation And Ranging
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sonar(sound navigation and ranging)
SOund Navigation And Ranging
sonar
The 5 letters in SONAR are the 4 words SOund Navigation And Ranging
The word SONAR - is an acronym derived from the phrase SOund Navigation And Ranging. in simple terms - a sound 'pulse' is sent out from the submarine or ship - and the time taken for the pulse to return indicates the distance to the object of interest.
Sonar was gradually developed and improved over many years, but the first operational form of sonar as we now know it goes back to about 1918.
The answer is ASDIC
SONAR - sends out a pulse of sound... The resulting reflected sound is analysed to form a 'picture' of what's around the vessel.
Killer whales use sonar which is a form of echolocation.
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sattelite with sonar
Sonar for one thing