New 'hearing' maps are real conversation starters
Innovative sound-mapping software based on human hearing has been developed to help architects design out unwanted noise.
Software
Mar 5, 2010
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Page 25 - News tagged with acoustics
Optical system promises to revolutionize undersea communications
(PhysOrg.com) -- In a technological advance that its developers are likening to the cell phone and wireless Internet access, Woods Hole Oceanographic Institution (WHOI) scientists and engineers have devised an undersea optical ...
Earth Sciences
Feb 23, 2010
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Acoustic levitation could be used on Mars
(PhysOrg.com) -- The presence of fine dust on the Moon and Mars may present problems for explorers, such as coating solar panels, penetrating seals and interfering with machinery. Human explorers would also be endangered ...
Flying Telescope Passes Key Test
Most astronomers wouldn't dream of opening their observatory's doors in 100 mph winds. Yet NASA's new SOFIA telescope recently flew in an airplane at 250 mph with doors wide open.
Space Exploration
Jan 8, 2010
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New system helps explain salmon migration
A new acoustic telemetry system tracks the migration of juvenile salmon using one-tenth as many fish as comparable methods, suggests a paper published in the January edition of the American Fisheries Society journal Fisheries. ...
Ecology
Jan 8, 2010
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From crickets to whales, animal calls have something in common
(PhysOrg.com) -- Scientists who compare insect chirps with ape calls may look like they are mixing aphids and orangutans, but researchers have found common denominators in the calls of hundreds of species of insects, birds, ...
Plants & Animals
Jan 5, 2010
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Blue whales singing with deeper voices
(PhysOrg.com) -- Blue whales, the largest animals on earth, are singing with deeper voices every year, but scientists are unsure of the reason.
Lasers generate underwater sound
Scientists at the Naval Research Laboratory (NRL) are developing a new technology for use in underwater acoustics. The new technology uses flashes of laser light to remotely create underwater sound. The new acoustic source ...
General Physics
Sep 4, 2009
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Ultra-flat loudspeakers with powerful sound reproduction
(PhysOrg.com) -- Bigger speakers, bigger sound - this is the music lover’s creed. Flat panel loudspeakers offer an alternative to those who would rather not or cannot clutter up their homes with speakers. These speakers ...
Engineering
Sep 3, 2009
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When a whistle beats a tweet
Biologists have discovered that a species of Australian pigeon has a secret way of alerting fellow birds to predators -- a "whistle" emitted by flapping wings when the bird takes off in alarm.
Plants & Animals
Sep 1, 2009
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