Sentences with phrase «using underwater microphones»

Directed by former National Geographic photographer Louis Psihoyos, «The Cove» was made secretly throughout 2007 using underwater microphones and high - definition cameras disguised as rocks, and with a camouflaged camera crew hidden on headlands, according to The Japan Times.

Using underwater microphones, motion sensors and high - speed videos, she observed that lobsters produce their typical noise by rubbing the plectrum against the equivalent of a stringa smooth plate tissue covered with microscopic ridges located just below the eye.

Researchers are using underwater microphones to interpret and characterize the calls of blue whales swimming through Southern California's oceans, revealing new insights into the behavior of these endangered marine mammals, according to new research being presented at the Ocean Sciences Meeting here on Tuesday.

The researchers used underwater microphones aboard buoys to record the ambient noises of a variety of ice breakups at the Hans Glacier in Norway and synchronized the recordings with time - lapse photos of the glacier (as shown in the video above).

To do this, the researchers use underwater microphones called hydrophones on oceanographic moorings to listen for the sounds made by marine mammals.

Traditionally, scientists have used underwater microphones to listen for marine mammals, either on the seafloor or towed behind a boat.

Not exact matches

The researchers measured the sound produced by the fish using an echo sounder (a sonar unit) and a hydrophone (underwater microphone).

The researchers used a small boat to tow an array of underwater microphones, called hydrophones, about 2 meters below the surface and recorded the sounds of individual dolphins identified by their dorsal fins.

Researchers at IMDEA Networks (Spain) in collaboration with University of Haifa (Israel) have developed an underwater acoustic system for the localization of marine mammals, underwater vehicles and other sound sources in the ocean, using no more than a single hydrophone (basically an underwater microphone) as a receiver.

If this material can be fabricated in bulk — and the researchers say there's no reason it can't be — simpler, less - sensitive underwater microphones can be used for land - sea communication for deep - ocean science or shipwreck exploration, for instance.