Detailed text transcripts for TV channel - MSNBC - 20140407:04:28:00
Salinity and has the effect of attenuating, bending, sometimes 90 degrees of sound waves. it's quite possible for sound to travel great distances, but be very difficult to hear near the surface of the ocean, for instance. so it is a markedly different environment to what you see with sound traveling through air and it's a very specialized skillset that is being employed at the moment. in terms of the towed pinger locator, we're expecting around a 2,000 yard detection range, so you can picture now moving 3 knots through the water or 5 kilometers per hour with a detection range of around 2 miles...
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