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ok boys&girls
hobbit:
SOund Navigation And Ranging
SONAR (SOund Navigation And Ranging)  or sonar  (in British use ASDIC until 1948) is a technique that uses sound propagation under water to navigate or to detect other vessels. There are two kinds of sonar  active and passive. Sonar is a subcategory of acoustic location.
from wikipedia :wink:
rangerider:
just came back to post that having had one of those flashes of inspiration that occur at random times :)
Sheddy:
Laser is the one word the unequivicably proves that Americans are thick. As has been stated, it is an acronym, a wordmade up of initials. So why do the yanks spell it with a "z"?
there can only be one answer - because they are thick.
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