Archive: 09/24/2009

Twin Keck telescopes probe dual dust disks

Astronomers using the twin 10-meter telescopes at the W. M. Keck Observatory in Hawaii have explored one of the most compact dust disks ever resolved around another star. If placed in our own solar system, ...

dateSep 24, 2009 in Astronomy
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Gulf fritillary is back

(PhysOrg.com) -- A showy butterfly with bright orange-red wings and a 4-inch wingspan is back in the Sacramento metropolitan area after a four-decade absence and in the Davis area after 30 years.

dateSep 24, 2009 in Ecology
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Scandinavians are descended from Stone Age immigrants

(PhysOrg.com) -- Today's Scandinavians are not descended from the people who came to Scandinavia at the conclusion of the last ice age but, apparently, from a population that arrived later, concurrently with the introduction ...

dateSep 24, 2009 in Evolution
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Schrodinger's Cat Experiment Proposed

(PhysOrg.com) -- One of the classical problems in quantum mechanics concerns a man and his feline companion. The man has placed his cat in an opaque tank and is slowing pumping it full of poison. Now until ...

dateSep 24, 2009 in General Physics weblog
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