Gas bubbles effervesce from a mound of muck on the seafloor in a deep submarine canyon off the west coast of Canada. Microbes beneath the sediment belch the bubbles after feasting on the ancient remains of algae, sea critters and their poop: a primordial stew that’s been simmering since long before humans walked the Earth.
This gassy oasis attracts an odd collection of critters. Worms...
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 of tropical bats revealed that all animals emitted extremely loud sounds, reports...
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Are you curious about the sound of pi? What sort of tune is the Dow Jones Industrial Average singing today? How does redwood DNA translate into an environmental symphony?
Music professor Jonathan N. Middleton and a team of students from the mathematics and computer science departments at Eastern Washington University have created a computer program and Web site that allows you to find...
David Schiminovich stared at a gallery of spiral galaxies as though he had never seen anything like them before. Indeed, no one had. He sat downloading the newly collected images in a narrow room overlooking a cavernous space at the California Institute of Technology in Pasadena. In that space, the mirror for the Palomar Telescope—until the mid 1970s, the world's largest telescope—had been...
"Let me start off with a riddle," says NASA scientist Allan J. Zuckerwar. In his office in Hampton, Va., he rattles off items as dissimilar as rhinoceroses, supersonic aircraft, and hurricanes. "Now, what do they have in common?" The answer, Zuckerwar explains, is that each one generates silent infrasound—long sound waves at a frequency below 20 hertz. People can't hear anything below that...