Small bit of a CMOS chip holds 2-D through-the-walls radar imager

Two researchers from the USC Viterbi School of Engineering have created a send/receive chip that functions as an active array, sending out a matrix of 49 simultaneous ultrawideband radar probe beams and picking up the returned ...

Communing with nature less and less

From backyard gardening to mountain climbing, outdoor activities are on the wane as people around the world spend more leisure time online or in front of the tube, according to findings published this week in the Proceedings ...

Bacterium sequenced makes rare form of chlorophyll

Researchers at Washington University in St. Louis and Arizona State University have sequenced the genome of a rare bacterium that harvests light energy by making an even rarer form of chlorophyll, chlorophyll d. Chlorophyll ...

Tipping elements in the Earth's climate system

Anthropogenic forcing could push the Earth’s climate system past critical thresholds, so that important components may “tip” into qualitatively different modes of operation. In the renowned magazine Proceedings of the ...

Neutron Stars Join the Black-Hole Jet Set

A team of astronomers has discovered a neutron star emitting an extended stream of powerful X rays, marking the first time such an extended X-ray jet has been detected originating from any class of object other than black ...

Mind the (online) gap

Instant messaging, blogs, Facebook, MySpace — there are limitless ways your child communicates online with the offline world. And the risks and opportunities are only increasing.

Birds, bats and insects hold secrets for aerospace engineers

Natural flyers like birds, bats and insects outperform man-made aircraft in aerobatics and efficiency. University of Michigan engineers are studying these animals as a step toward designing flapping-wing planes with wingspans ...

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