Uncategorized
- Astronomy
Black holes may shut down stellar factories
Astronomers find dead galaxies loaded with the cold gas needed to make stars.
- Tech
Shining a light on radio waves
A new device detects faint signals by first converting them to laser pulses.
- Physics
Superfast laser pulses could pave way for beam weapons
Short light bursts turn columns of air into energy conduits.
- Health & Medicine
Casinos may reduce poverty, obesity in Native American communities
A modest reduction in overweight youth was observed after the addition of slot machines.
- Health & Medicine
Meaty diets may raise risk of dying young
Reducing protein consumption can lengthen life and improve health, studies in mice and people suggest.
- Health & Medicine
HPV vaccination proves its worth in Australia
A study in Australia finds the shots are already reducing cases of abnormal cervical lesions.
- Astronomy
Exoplanet water seen in new light
Astronomers used a new technique to characterize the atmosphere of a gas giant exoplanet.
- Animals
Peacocks sometimes fake mating hoots
Peacocks may have learned a benefit of deception by sounding their copulation calls even when no peahens are in sight.
- Neuroscience
Brain uses decision-making region to tell blue from green
Language and early visual areas of the brain are not crucial for distinguishing colors, an fMRI study suggests.
- Genetics
Neanderthal Man
The hottest thing in human evolution studies right now is DNA extracted from hominid fossils. Svante Pääbo, the dean of ancient-gene research, explains in Neandertal Man how it all began when he bought a piece of calf liver at a supermarket in 1981.
- Microbes
Power-packed bacterial spores generate electricity
With mighty bursts of rehydration, bacterial spores offer a new source of renewable energy.
- Physics
Laser tweezers manipulate objects just 50 nanometers wide
Technique could allow scientists to move proteins, viruses and nanomaterials.
