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2007-03-21 15:34:49 · 3 answers · asked by confuzzled 1 in Environment

3 answers

Not thermal energy per se ut it does have some energy prolems associated with it.

Sonar and marine animals
Some marine animals, such as whales and dolphins, use echolocation systems similar to active sonar to locate predators and prey. It is feared that sonar transmitters could confuse these animals and cause them to lose their way, perhaps preventing them from feeding and mating. A recent article on the BBC website (see below) reports findings published in the journal Nature to the effect that military sonar may be inducing some whales to experience decompression sickness (and resultant beachings).

High-powered sonar transmitters can indirectly kill marine animals. In the Bahamas in 2000, a trial by the US Navy of a 230 decibel transmitter in the frequency range 3 to 7 kHz resulted in the beaching of sixteen whales, seven of which were found dead. The Navy accepted blame in a report published in the Boston Globe on 2002-01-01. However, at low powers, sonar can protect marine mammals against collisions with ships.

2007-03-25 13:59:59 · answer #1 · answered by Anonymous · 0 0

No. Sonar only has to do with acoustic (sound) energy.

2007-03-21 15:38:17 · answer #2 · answered by campbelp2002 7 · 0 0

properly tuned ultrasound can heat tissue, so in that specific case, yes. Don't know 'bout sonar, however.

2007-03-21 17:06:55 · answer #3 · answered by bobette 6 · 0 0

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