Archive: 4/02/2008

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 ...

dateFeb 04, 2008 in Other
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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 ...

dateFeb 04, 2008 in
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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 ...

dateFeb 04, 2008 in Earth Sciences
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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 ...

dateFeb 04, 2008 in Astronomy
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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.

dateFeb 04, 2008 in Other
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