News
- Health & Medicine
Cap or cork, it’s the wine that matters most
Comparative study finds that screw tops can perform just as well in regulating the aging process.
- Humans
Wildlife trade meeting disappoints marine scientists
The 15th meeting of signatories to the CITES treaty ended on March 25 without passing several proposals to protect high-profile fish species.
- Earth
Alternative flame retardants leach into the environment
Supposedly safer chemicals are spotted in peregrine falcon eggs in California.
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- Physics
Bar codes could be next to check out
New radio frequency tags would use nanotechnology to identify and track products.
- Health & Medicine
Existing antibiotic might help keep wraps on AIDS virus
The acne drug minocycline inhibits HIV activation in infected immune cells, lab tests show.
- Paleontology
Tyrannosaurs lived in the Southern Hemisphere, too
Australian fossils suggest the kin of T. rex dispersed globally 110 million years ago.
- Chemistry
Building a cheaper catalyst
Using perovskite instead of platinum in catalytic converters could shave many hundreds of dollars off the cost of a diesel car.
- Humans
Ancient DNA suggests new hominid line
Genetic data unveil a previously unknown Stone Age ancestor in central Asia.
- Earth
Bacteria show new route to making oxygen
New discovery adds to the few known biological pathways for making and metabolically using the gas.
- Chemistry
Better sleuthing through chemistry
New fingerprinting method can pinpoint where, when or how a chemical warfare agent came to be.
- Physics
You really can freeze hot water faster than cold*
Experiments suggest that impurities in the warmer water may explain the “Mpemba effect” in which warm water freezes faster than cold water.
