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Health & MedicineIngredient of dark roasted coffees may make them easier on the tummy
A compound generated in the roasting process appears to reduce acid production in the stomach.
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ChemistryCool roof coating: Mechanism kept under wraps
The American Chemical Society held a news briefing March 21 to feature a new energy-saving technology. It’s an ostensibly “smart” coating for roofing materials that knows when to reflect heat, like in summer time, and when to instead let the sun’s rays help heat a structure.
By Janet Raloff -
SpaceCosmic telephoto lens shows intense, early star formation
A recently discovered galaxy gives a detailed view of stellar birth in the young universe.
By Ron Cowen -
PlantsBees face ‘unprecedented’ pesticide exposures at home and afield
Honey bees are being hammered by some mysterious environmental plaque that has a name — colony collapse disorder – but no established cause. A two-year study now provides evidence indicting one likely group of suspects: pesticides. It found “unprecedented levels” of mite-killing chemicals and crop pesticides in hives across the United States and parts of Canada.
By Janet Raloff -
LifeThere are rules in fiddler crab fight club
Territorial crustaceans will defend their own rivals, but only to keep stronger ones out.
By Susan Milius -
PaleontologyFossilized poop bears tooth marks
Shark-bitten fecal matter probably came from an assault on an ancient croc.
By Sid Perkins -
PhysicsSuperchilly chemistry
New theory and experiments help reveal how molecules interact in an ultracold system.
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AnthropologyFarming’s rise cultivated fair deals
A cross-cultural study suggests that the spread of farming unleashed a revolution in concepts of fairness and punishment.
By Bruce Bower -
PhysicsHow to hide a bump with some logs
Physicists take a step toward true invisibility with a cloak that makes objects invisible from multiple points of view.
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PhysicsNext on CSI: Surface-enhanced Raman spectroscopy
The modification of a powerful chemical analysis technique could make it the gold standard in detecting trace substances.
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EarthIce drilling nets shrimpy surprise
Underwater camera captures an Antarctic crustacean, as a serendipitous part of a larger ice shelf study.
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PhysicsBody heat may draw particles into breathing range
Computer simulations suggest thermal plumes may trap microbes, pollen and dust near a person’s head.