Uncategorized
- Earth
The Big Dry
Parts of Australia have suffered from severe drought for more than a decade, and people, vegetation, and animals are feeling the heat.
- Tech
Virtual Worlds, Real Science
Epidemiologists and social scientists are tapping into virtual online worlds inhabited by millions to collect data with real-world uses.
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From the October 16, 1937, issue
Biological prospecting on two remote mesas near the Grand Canyon, a newly described and widespread form of meningitis, and primate fossils from the Crazy Mountains of Montana.
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LEDs for the Rest of Us
Light emitting diodes, better known as LEDs, are the coolest new light sources. They’re tiny, long-lived, and rugged. But how do they work? Check out this site if you desire considerably more detail than can be found in a two-sentence summary. Go to: http://electronics.howstuffworks.com/led.htm
- Health & Medicine
Looking for Biomarkers: Protein signature may warn of impending Alzheimer’s disease
Measuring the amounts of certain proteins in the blood might provide early warning of Alzheimer's disease.
- Earth
Bad Acid: Ocean’s pH drop threatens snail defense
As ocean waters trend toward acidity, a result of atmospheric greenhouse gas buildup, a shoreline snail's defense against predatory crabs may weaken.
- Planetary Science
Portrait of a Martian crater
An ultrasharp image of part of Mars' Gale crater shows waterborne sediments and volcanic ash.
- Health & Medicine
Beware the Starlings: Common birds can carry avian influenza
Common songbirds such as starlings may be able to carry and spread avian influenza.
- Physics
Axion Gone: New tests find no sign of anomalous particle
New experiments contradict earlier claims of the discovery of the axion, a possible constituent of cosmic dark matter.
- Health & Medicine
Regulating Muscle Decline: Small molecules linked to degenerative diseases
Snippets of RNA that regulate gene activity play a role in muscle-wasting diseases such as muscular dystrophy.
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19892
In this article, researcher Curtis Marean refers to Stone Age people using a reddish pigment for “body coloring or other symbolic acts.” What reason is there for jumping to this conclusion? As with cave painting and figurines, there seems to be an undue emphasis on symbolism and a supposition that everything has to have “meaning,” […]
- Anthropology
Going Coastal: Sea cave yields ancient signs of modern behavior
A South African cave yields evidence of complex, symbolic behavior among ancient people about 164,000 years ago, the oldest such indications yet.
