News tagged with acoustic

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 ...

Jan 08, 2010 5 / 5 (1) 0 | with audio podcast

Christmas Carol Talk

Even without the lyrics, the tunes of some Christmas carols -- such as "Jingle Bells" or "Deck the Halls" -- sound uplifting. But the melodies of other songs like "We Three Kings" have a different, somber sound.

Dec 22, 2009 not rated yet 0

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 ...

Sep 04, 2009 4.6 / 5 (9) 6

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.

Sep 01, 2009 not rated yet 1