Uncategorized
- Tech
Bugs on Mars
Undaunted by the hurdles on flight posed by thin air and a lack of oxygen, aerospace engineers are devising extraordinary flying machines resembling giant insects and windmills to make the exploration of Mars more rapid and effective.
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Linguistic cladistics? Based on vocabulary? Linguistic froth, such as loan words from other languages, frequently becomes a source of heated debate. The deep structures of language that can provide a relatively stable field for analysis are more subtle. These include verb-substantive-object order, verbs of giving or receiving, noun declensions, and the like. But even these […]
- Anthropology
Searching for the Tree of Babel
Researchers are using new methods of comparing languages to reveal information about the ancestry of different cultural groups and answer questions about human history.
- Animals
Gator Feelings: Tough faces, more sensitive than ours
Alligator and crocodile faces carry pressure receptors so responsive that they can detect ripples on the water's surface from a single falling drop.
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Anthrax genomes compared for terrorism clues
Investigators seeking clues to last fall's anthrax attack have analyzed the genome of the anthrax bacterium.
- Planetary Science
Hard bodies pair off
About one out of every eight asteroids traveling near Earth has a rocky companion.
- Archaeology
Openings to the Underworld
Archaeological finds indicate that ancient groups in Mexico and Central America, including the Maya, held beliefs about a sacred landscape that focused on natural and human-made caves as sites of important ritual activities and burials.
- Health & Medicine
D-fending the Colon: Bile component triggers vitamin D receptor
The protein that enables cells to respond to vitamin D also helps the gastrointestinal tract protect itself from an especially dangerous acid in bile.
- Tech
Live Tour: Joystick journeys reveal tumor interiors
A new holographic technique may someday enable doctors to skip certain biopsies and choose instead to take video excursions inside suspicious growths in skin or internal body linings.
- Health & Medicine
Wholesome Grains: Insulin effects may explain healthful diet
Overweight people who eat whole grains rather than refined ones appear better equipped to manage their blood-sugar concentrations with minimal production of the hormone insulin, which could help explain why a diet rich in whole grains appears to guard against type II diabetes and heart disease.
- Earth
Shelter from Space Storms: Energy rebounds from Earth
NASA satellite observations show that Earth's outer atmosphere interacts dramatically with the solar wind and shields the planet from it.
- Health & Medicine
Amyloid Buster? New drug hinders Alzheimer’s protein
By disabling a dementia-linked protein, a synthetic drug is showing a tantalizing capacity to interfere with the formation of waxy amyloid deposits like those that accumulate in the brains of people with Alzheimer's disease.
