News tagged with ultrasonic sound
Measuring sound with a nanoscopic air bubble
Dec 04, 2008 |
4.5 / 5 (10) |
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(PhysOrg.com) -- It will soon be possible to measure ultrasonic sound using water, air, light and nanotechnology – over a hundred times more accurately than with existing sensors.
Search results for ultrasonic sound
Ultrasonic frogs can tune their ears to different frequencies
Biology /
Jul 22, 2008 |
4.6 / 5 (8) |
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Researchers have discovered that a frog that lives near noisy springs in central China can tune its ears to different sound frequencies, much like the tuner on a radio can shift from one frequency to another. ...
Female concave-eared frogs draw mates with ultrasonic calls
Biology /
May 11, 2008 |
4.9 / 5 (9) |
1
Most female frogs don’t call; most lack or have only rudimentary vocal cords. A typical female selects a mate from a chorus of males and then –silently – signals her beau. But the female concave-eared torrent ...
Scientists discover ultrasonic communication among frogs
May 11, 2009 |
5 / 5 (4) |
1
(PhysOrg.com) -- UCLA scientists report for the first time on the only known frog species that can communicate using purely ultrasonic calls, whose frequencies are too high to be heard by humans. Known as ...
I'm forever imploding bubbles
Apr 07, 2009 |
4.7 / 5 (3) |
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The National Physical Laboratory (NPL) has developed the first sensor capable of measuring localized ultrasonic cavitation - the implosion of bubbles in a liquid when a high frequency sound wave is applied. The sensor will ...
Detecting land mines with sound
Jan 23, 2007 |
4.8 / 5 (8) |
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Researchers at MIT's Lincoln Laboratory are developing a highly pinpointed sound beam that can detect buried land mines from a safe distance. The new beam will use sound to seek out land mines like a bat uses sonar to hunt ...
Mystery of bat with an extraordinary nose solved
Jul 07, 2009 |
4.6 / 5 (8) |
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A research paper co-written by a Virginia Tech faculty member explains a 60-year mystery behind a rare bat's nose that is unusually large for its species. The findings soon will be published in the scientific ...
Rare Chinese frogs communicate by means of ultrasonic sound
Mar 15, 2006 |
4.1 / 5 (11) |
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First came word that a rare frog (Amolops tormotus) in China sings like a bird, then that the species produces very high-pitch ultrasonic sounds. Now scientists say that these concave-eared torrent frogs also ...
Scientists discover exactly how bats fly
Feb 07, 2006 |
2.4 / 5 (7) |
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University of Maryland scientists using infrared cameras and ultrasonic microphones have found exactly how a bat moves in response to sound.
New ultrasonic technology could help prevent train derailments
Aug 22, 2006 |
3.6 / 5 (7) |
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Researchers at the University of California, San Diego have developed a new technique they said is better able than currently used technology to find defects in steel railroad tracks, including hard-to-find ...
Researchers build an ultrasound version of the laser
Jun 08, 2006 |
4.6 / 5 (54) |
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Researchers at the University of Illinois at Urbana-Champaign and at the University of Missouri at Rolla have built an ultrasound analogue of the laser.
List of search results for ultrasonic sound
