Uncategorized
- Physics
One-molecule chemistry gets big reaction
Carrying out a widely used chemical reaction on one molecule at a time, researchers demonstrate unprecedented control of molecular behavior and, possibly, the ability to make novel nanotechnology devices and compounds that can't be created with ordinary chemistry.
- Computing
Virtual stampede sees faces in crowd
A new computer model based on particle interactions suggests ways to prevent a panicked crowd from stampeding.
- Physics
Electron breakup? Physics shake-up
A controversial theoretical proposal that challenges more than a century of theory and experiments suggests that loose electrons in liquid helium may break into pieces, dubbed electrinos.
-
Abused kids lose emotional bearings
Physical abuse and neglect appear to undermine preschoolers' emotional development in different ways.
-
Brains generate a body of feeling
Happiness, sadness, and other basic emotions activate unique networks of brain areas that track the body's internal status.
- Chemistry
New solution for kitchen germs
Acidic electrolyzed water appears to kill foodborne germs more effectively than a bath of dilute bleach.
- Chemistry
Toxic runoff from plastic mulch
Pesticide runoff from tomato fields covered with sheets of plastic can kill fish, clams, and other aquatic life.
- Chemistry
Germ-killing plastic wrap
Scientists have developed biodegradable plastics that release natural germ-killing agents onto the foods wrapped inside.
- Math
Unlocking Puzzling Polygons
Proof settles a wickedly prickly question about unfurling crinkly polygons.
-
Snap, Crackle, and Feel Good?
Magnetic fields that map the brain may also treat its disorders.
- Physics
Most-Wanted Particle Appears, Perhaps
Hints of the Higgs boson—the crucial and last undetected fundamental particle predicted by the central theory of particle physics—have cropped up at a particle collider in Switzerland just as the machine is slated to be dismantled to make room for a more powerful collider.
- Health & Medicine
Cells profilerate in magnetic fields
Magnetic fields such as those found within a few feet of outdoor electric-power lines could make cells that are vulnerable to cancer behave like tumors.
