Uncategorized
- Health & Medicine
Vitamin D deficiency
Parkinson’s disease patients are more commonly lacking in vitamin D than Alzheimer’s patients or healthy people.
- Space
A comet doubleheader
Astronomers have discovered the first comet that appears to be a contact binary — two chunks somehow held together by a narrow neck of material.
- Space
Askew in the outer solar system
A chunk of ice orbiting backwards around the sun could offer hints about the mysterious origin of some comets.
- Space
Sniping at Jupiter
Giant Jupiter, often thought to protect the inner planets from space debris, may sometimes acts as a sniper, hurling material toward Earth.
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- Earth
Salinity sensors
Trace elements in the carbonate shells of freshwater mussels could serve as an archive of road salt pollution.
- Health & Medicine
Bad air for growing brains and minds
Preliminary evidence suggests that children’s regular exposure to heavy air pollution can be accompanied by brain inflammation and lowered scores on intelligence tests.
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Letters
From the October 25 issue of Science News magazine.
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U.S. must invest in technologies to avoid energy crisis
Steven Chu, director of Lawrence Berkeley National Laboratory and a Nobel laureate in physics, has advocated for energy thrift. During a September visit to Washington, D.C., he spoke with senior editor Janet Raloff about how he believes the United States can tackle what he sees as a looming energy crisis. You’ve said the United States […]
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Natural History of the Point Reyes Peninsula by Jules G. Evens
Univ. of California, 2008, 366 p., $24.95.
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The Symmetries of Things by John H. Conway, Heidi Burgiel and Chaim Goodman-Strauss
A.K. Peters, 2008, 426 p., $69.
