Uncategorized
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PhysicsStretched matter goes to unusual extremes
Researchers have discovered that several unusual forms of matter with extremely high or low densities can expand laterally in one direction and contract in another when extended.
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Old lemming puzzle gets new answer
A novel analysis suggests food supply variations as the answer to the decades-old puzzle of what makes lemming populations boom and bust.
By Susan Milius -
Biodiversity may lessen Lyme disease
A survey of Lyme disease rates suggests that a greater diversity of small mammals and lizards may help keep the rates down.
By Susan Milius -
Health & MedicineDid colonization spread ulcers?
A comparison of strains of Helicobacter pylori, the bacterium that causes ulcers, suggests that colonists brought it to the New World.
By Nathan Seppa -
Health & MedicineNew tests may catch bicyclers on dope
Two new tests, on blood and urine, detect the presence of synthetic erythropoietin, a drug that boosts red blood cell counts and enhances stamina.
By Nathan Seppa -
MathPursuing punctured polyhedra
A mathematician has proved that it's possible to construct a mathematical shape made up of flat faces and straight edges in which every face has a "hole" where the vertex of one constituent polyhedron pokes into the face of another.
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MathSuper Bowls and stock markets
The predictive power of the Super Bowl "theory," which involves an apparent correlation between stock market performance and the results of the National Football League championship game, has declined precipitously in recent years.
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PhysicsAtom microchips get off the ground
Becoming smaller and more versatile, microchips using atoms instead of electrons promise both to improve atomic physics experiments and to pave the way for new technologies such as quantum computers.
By Peter Weiss -
PhysicsLight chips find a place to take root
The fabrication of an artificial, inside-out opal of silicon promises to make all-optical microchips possible
By Peter Weiss -
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Health & MedicineEnzyme Shortage May Lead to Lupus
Without the enzyme DNase I, mice are vulnerable to symptoms of lupus, a debilitating autoimmune disease.
By Nathan Seppa