Squeezing light into metals
Human hands 'designed to throw punches'
Grandmothers responsible for human longevity
Winds high in stratosphere affect deep ocean currents
Spintronic LED is brighter and cheaper
Sexting common amongst US teens
New game controller tugs on players' thumb tips
Researchers find new way to purify water
World's tiniest memory created in atomic nuclei
Software edits huge images in seconds instead of hours
New technique could allow the paralyzed to 'speak'
Lie detector works by targeting people with 'shifty eyes'