Physics
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We summarize the week's scientific breakthroughs every Thursday.
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PhysicsFriction gives snakes a smooth slither
Combination of friction and push propels snakes forward on flat surfaces.
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PhysicsMechanical systems all tangled up
Researchers link the motion of two ion pairs through “spooky action at a distance.”
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ChemistryBeryllium-beryllium bond illuminated
Scientists study the partnership between two atoms of beryllium, which chemical theory says shouldn’t exist.
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PhysicsEuropium’s superconductivity demonstrated
A rare earth metal is the 53rd naturally occurring element to possess the property.
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PhysicsMolecule turns red at breaking point
Materials made with a color-changing molecule may offer a red signal when under stress.
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EarthU.S. radiation dose has doubled
New analysis finds radiation-based medical procedures have skyrocketed.
By Janet Raloff -
PhysicsObama pledges 3 percent of GDP for research
Pledges for big budget increases for research, permanent tax credits for reseach by industry and more were announced today.
By Janet Raloff -
EcosystemsLiving Physics
From green leaves to bird brains, biological systems may exploit quantum phenomena.
By Susan Gaidos -
ClimateEPA says greenhouse gases ‘endanger’ health
Featured blog: New ruling is a likely first step toward federal moves to cut tailpipe emissions of carbon dioxide and more.
By Janet Raloff -
PhysicsNanoclusters seem to skirt physics law
In simulations, tiny loophole allows colliding nanoclusters to increase speed after impact.
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TechCloaked eye still sees
Researchers have proposed a model that would allow sensors to send and receive information virtually undetected.
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HumansIn teeth, more cracks are better than one
Cracks in tooth enamel, called tufts, distribute force and shield a tooth from fracture, researchers report.