News tagged with underwater microphones
Whale sonar: Two pings are better than one
Mar 04, 2009 |
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Many whale species have sonar systems that send out two pings at once, allowing them to detect underwater objects with greater accuracy than even the most sophisticated human technologies, according to a study ...
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Birds Call to Warn Friends and Enemies
Dec 03, 2009 |
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(PhysOrg.com) -- Birds' alarm calls serve both to alert other birds to danger and to warn off predators. And some birds can pull a ventriloquist's trick, singing from the side of their mouths, according to a UC Davis study.
Dutch PhD student develops device to combat noise
Dec 01, 2009 |
4.3 / 5 (7) |
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Johan Wesselink of the University of Twente, The Netherlands, has developed a device to actively combat noise nuisance. This invention curtails sound waves and vibrations by producing anti-noise. The researcher is confident ...
New forensic technique gives clues about sharks from bite damage
Dec 01, 2009 |
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Hit-and-run attacks by sharks can be solved with a new technique that identifies the culprits by the unique chomp they put on their victims, according to a University of Florida researcher and shark expert.
Gift Guide: A focus on HD video, at many prices
Electronics / Consumer & Gadgets
Dec 01, 2009 |
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It's easier than ever to shoot high-definition video. You can do it with traditional-style camcorders, of course, but also with cameras that also are designed to take still photos - from high-end "digital ...
Nearly half of Venice underwater
Nov 30, 2009 |
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Much of the historic Italian city of Venice, including St. Mark's Square, was underwater Monday following a meteorological depression combined with natural tide waters, officials said.
Superior Super Earths
Space & Earth / Space Exploration
Nov 30, 2009 |
4.7 / 5 (47) |
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Super Earths are named for their size, but these planets - which range from about 2 to 10 Earth masses - could be superior to the Earth when it comes to sustaining life. They could also provide an answer to ...
Signal fading on radio traffic reports
Nov 27, 2009 |
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(AP) -- For more than 20 years, Mike Nolan was known to radio listeners as the "eye in the sky." He flew over Southern California freeways in his single-engine plane, reporting on the nation's worst traffic.
Ecologists sound out new solution for monitoring cryptic species
Nov 27, 2009 |
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Ecologists have at last worked out a way of using recordings of birdsong to accurately measure the size of bird populations. This is the first time sound recordings from a microphone array have been translated into accurate ...
Musical robots perform duets (w/ Video)
Nov 26, 2009 |
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(PhysOrg.com) -- A flute playing robot unveiled by Waseda University last year has been joined by a robot saxophonist in a Classical music duet. The aim of the project was to design robots that could respond ...
Robotic clam digs in mudflats
Nov 22, 2009 |
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To design a lightweight anchor that can dig itself in to hold small underwater submersibles, Anette (Peko) Hosoi of MIT borrowed techniques from one of nature's best diggers -- the razor clam.
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