Ready for Brainier Air Bags
September 26, 1998 | Volume 154 | Number 13
Cover: The next generation of computerized and
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News of the Week:
Second Group of Living Fossils Reported
Two coelacanths caught in Indonesia indicate that island reefs there host the second known population of these fish.
Gene differs in early birds and night owls
Differences in a gene for the human biological clock may help explain why some people are early risers and others hit the snooze button.
A dozen new planets . . . and still counting
Astronomers have discovered two new planets orbiting sunlike stars, and another team has found graphic evidence that another sunlike star hosts a complete planetary system.
Progestin enhances an anticancer process
A study of monkeys shows that the hormone progestin, found in birth control pills, can trigger a natural cell-death process that inhibits cancer.
Ceramics cling to long bacterial strings
Long threads of connected bacteria can serve as templates for making ceramic fibers.
Calcium gives black teens heart benefits
Calcium supplements can slightly reduce blood pressure in black teens whose diets contain too little of this essential mineral.
A step closer to an atomic-based kilogram?
A new, ultraprecise measurement of the Planck constant represents an important step toward redefining the global standard for the kilogram.
As globe warms, atmosphere may shrink
The height of the upper atmosphere has dropped over the last 40 years, possibly because of greenhouse warming.
Ancient American marine scene
A pair of coastal sites discovered in Peru suggests that people exploited both marine and inland resources in the New World as early as 11,000 years ago.
Trailing Lewis and Clark
Archaeologists announce the discovery of a campsite that seems to have been set up in 1805 by the explorers Meriwether Lewis and William Clark.
Deep rock gives lift to Africa
Upwelling currents near the bottom of Earths mantle may explain why southern Africa sits so high.
Bonnies clouds pierced stratosphere
Satellite images show a tall, narrow stack of clouds towering over Hurricane Bonnie.
Evolutionary biologists help trace the ancestry of a classic
Scientists used software that traces the ancestry of living species to help literary scholars determine which versions of Chaucers The Canterbury Tales are closest to the original.
Stamping Out Syphilis
Can the United States finally vanquish this sexually transmitted disease?
Federal health officials have targeted the spiral bacterium that causes syphilis, which is currently at an all-time low in the United States.
Curbing Air Bags Dangerous Excesses
New smarts, new sensors, and variable inflation could reduce injury and death
Makers of car safety systems are developing sophisticated technology for air bags and seat belts to lessen problems caused by forceful inflation.
Letters: A Selection from Letters to the Editor
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