Search results
Results from the WOW.Com Content Network
The SOFAR channel (short for sound fixing and ranging channel), or deep sound channel (DSC), [1] is a horizontal layer of water in the ocean at which depth the speed of sound is at its minimum. The SOFAR channel acts as a waveguide for sound, and low frequency sound waves within the channel may travel thousands of miles before dissipating.
Underwater sound has probably been used by marine animals for millions of years. The science of underwater acoustics began in 1490, when Leonardo da Vinci wrote the following, [2] "If you cause your ship to stop and place the head of a long tube in the water and place the outer extremity to your ear, you will hear ships at a great distance from ...
Upsweep is an unidentified sound detected on the American NOAA's equatorial autonomous hydrophone arrays. This sound was present when the Pacific Marine Environmental Laboratory began recording its sound surveillance system, SOSUS, in August 1991. It consists of a long train of narrow-band upsweeping sounds of several seconds in duration each.
Underwater communication is difficult due to factors such as multi-path propagation, time variations of the channel, small available bandwidth and strong signal attenuation, especially over long ranges. Compared to terrestrial communication, underwater communication has low data rates because it uses acoustic waves instead of electromagnetic waves.
TV shows and movies don't make any sense to them. Pets can't visually make sense of the programs we love. To them, everything looks like one big blur -- but dogs and cats see different things.
But the channel's animal behavior experts insist that the veterinary science underlying the approach is sound. If you want the channel for your pooch -- or you think you'd enjoy watching dogs play ...
Channel 23 (Madrid, HD) Squirrel is a Spanish free-to-air film-centric channel with a general format undefined by any certain film era owned by Squirrel Media. The channel was launched on 7 January 2025, replacing Disney Channel in Spain on DTT .
Abyssal channels (also, deep-sea channels, underwater channels) are channels in Earth's sea floor. They are formed by fast-flowing floods of turbid water caused by avalanches near the channel's head, with the sediment carried by the water causing a build-up of the surrounding abyssal plains. Submarine channels and the turbidite systems which ...