News
- Physics
Echoes create an interior map app
To record size and shape of a room, researchers use a speaker, five microphones and some math.
- Animals
Oysters may struggle to build shells as carbon dioxide rises
Ocean acidification could hamper larvae's growth.
- Physics
Simple invisibility cloaks hide toys, pets, people
Using everyday materials, two research teams conceal ordinary objects by guiding light around them.
- Health & Medicine
DSM-5 enters the diagnostic fray
Fifth edition of the widely used psychiatric manual focuses attention on how mental disorders should be defined.
- Life
Leprosy bacterium changed little in last millennium
Genome alterations probably not responsible for decline in disease prevalence.
- Life
Primitive fish could nod but not shake its head
Ancient fossils reveal surprises about early vertebrate necks, abdominal muscles.
- Chemistry
An eel’s glow could illuminate liver disease
Fluorescent protein binds to bilirubin, a compound the body must eliminate.
- Archaeology
Ancient Siberians may have rarely hunted mammoths
Occasional kills by Stone Age humans could not have driven creatures to extinction, researchers say.
- Life
In the real world, cheetahs rarely go all out
Famous for speed, the big cats actually rely on acceleration and maneuverability to capture prey.
- Life
Nail-generating tissue also regrows fingertips
Stem cells spur return of amputated digits in mice
- Health & Medicine
Headers linked to memory deficit in soccer players
Abnormalities in three brain regions found among those who head the ball most frequently.
- Science & Society
Chimps in captivity may soon join endangered species list
Proposal would extend protections to both wild and captive primate populations.
