Rice's single-pixel camera takes high-res images

For all their ease and convenience, there are few things more wasteful than digital cameras. They're loaded with pricy microprocessors that chew through batteries at a breakneck pace, crunching millions of numbers per second ...

Alternative energy: A new way to take a bite of sunlight

Flash those pearly whites in a dazzling smile and you showcase a natural light collector mechanism hidden inside the internal structure of dentin - the hard, bone-like material that forms the main part of teeth.

Emergency tests focus on lab radioactivity analyses

Working under severe time pressure, government laboratories can analyze radioactive samples fairly quickly -- in a matter of hours -- but with variable accuracy, and sometimes relaxed quality control procedures, according ...

Record ozone loss during 2006 over South Pole

Ozone measurements made by ESA's Envisat satellite have revealed the ozone loss of 40 million tons on 2 October 2006 has exceeded the record ozone loss of about 39 million tons for 2000.

MetOp launch postponed

EUMETSAT has announced that on Saturday 30 September the upper composite (comprising the MetOp spacecraft, the Fregat upper stage and the Soyuz fairing) experienced a slight mechanical shock. It was then decided to interrupt ...

The Branes Behind String Theory

“The thing about our universe,” says David Lyth, a professor at Lancaster University in the United Kingdom, “is that it is not completely uniform. This has been a bit of a puzzle to cosmologists.” He explains that ...

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