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EarthVolcanic Suppression: Major eruptions can reduce sea level
Although scientists have known for years that major volcanic eruptions can temporarily cool Earth's climate, a team now suggests that such outbursts can temporarily cause sea level to drop for a while as well.
By Sid Perkins -
Materials ScienceUp to Snuff: Nanotube network fights flames
Researchers have found that infusing plastics with a network of carbon nanotubes reduces their flammability.
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AnimalsBeyond Falsetto: Do mice sing at ultrasonic frequencies?
Male mice may serenade prospective mates at pitches about two octaves higher than the shrillest sounds audible to the human ear. With Audio.
By Ben Harder -
19608
Humans vocalize primarily non-harmonically (talk), but some can also vocalize harmonically (sing).