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Bat That Roared

codewolf.com     May 2, 2008       Send to a friend

Bat That Roared - Bats using sound to find their way in the dark boom louder than home fire alarms and rock concerts, according to new measurements.Fortunately all that noise stays at frequencies too high for human hearing, or bats would drive people batty.Measurements of sounds from 11 species...


Fist sized bats louder than loudest rock concerts

indiaenews.com     May 5, 2008    Send to a friend

Fist sized bats emit much louder sounds than the noisiest rock concerts anywhere, according to a new study. ... Using microphone arrays and photographic methods, researchers found that bats emit ear shattering sounds exceeding 140 deciBels (dB) at 10 cm from the source,...

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