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This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? Ever been woken up by the sound of the refrigerator compressor kicking on? Well, such clumsy heat exchange units featuring long metal coils may be on their way out. Becaus

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Russian President Dmitri Medvedev has signed decrees granting formal recognition to the Georgian breakaway regions of Abkhazia and South Ossetia. But VOA Moscow correspondent Peter Fedynsky reports analysts say the move could promote separatism in R

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学英语单词

actual zenith distance

as swift as an arrow

asadabads

Atsion

BICEP (British Industrial Cooperative Exponential Pile)

brickyard

building-and-loan association

cathey

central shaft

chromosome of wheat

cloth measuring apparatus