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http://www.sciencenews.org/view/issue/id/2007
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In the December 5 Issue:
- TABLE OF CONTENTS
- Climate might be right for a deal: Copenhagen negotiations will take steps toward a climate-stabilizing treaty
- Botanical Whales: Adventures in the Tortugas reveal that seagrass fields need saving too
- Breaking the Speed Limit: Studies examine physiology and technology to better foresee the ultimate edge of human performance
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September 22nd, 2001
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The first discovery of early whale fossils with key ankle bones intact provides compelling paleontological evidence that whales are closely related to many living ungulates, a relationship already supported by molecular data. (p. 180)
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Drinking just 1 to 3 cups of coffee daily may adversely affect blood concentrations of cholesterol and homocysteine. (p. 180)
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Rather than just grinding past each other, sliding surfaces may tremble with minuscule ripples that overcome friction as they move along. (p. 181)
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Researchers have created a ceramic that stretches to 10 times its original length in record time. (p. 181)
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Two drugs normally prescribed for high blood pressure help forestall kidney damage in people with type 2, or adult-onset, diabetes. (p. 182)
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A series of staged conflicts reveals the first known acoustic duels in caterpillars. (p. 182)
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Drugs such as insulin may be delivered by inhaling mists of medicine-containing alcohol. (p. 183)
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Although the rate of daily cigarette smoking has declined among teenagers and young adults over the past 20 years, the number of smokers in this age range who develop nicotine dependence has risen dramatically. (p. 183)
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A controversial new theory proposes that our universe existed as a cold, featureless void for eons, until a parallel universe floating through a hidden fifth dimension crashed into it, igniting the Big Bang. (p. 184)
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Microscopic data from artifacts found at two Ukrainian sites indicate that Neandertals used stone tools in flexible ways that allowed them to maintain a broad diet for nearly 50,000 years. (p. 187)
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Researchers found the remains of a 36,000-year-old human occupation in the Russian Arctic, which represents the earliest evidence of a human presence that far north. (p. 187)
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People who are obese or who have led sedentary lives with little exercise are more likely than others to develop pancreatic cancer. (p. 187)
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Men who are constipated are more likely to develop Parkinson's disease than men who are not. (p. 187)
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Hungry chicks cheeping in their nest have inspired a whole branch of scientific inquiry. (p. 188)
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Scientists say that a narrow region that rims the southern edge of the Tibetan Plateau could be the spawning grounds for large earthquakes that could threaten millions in southern Asia in the decades to come. (p. 191)
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Scientists have used the principles of quantum physics to answer the long-standing puzzle of why seismic waves travel at different speeds in different directions across Earth's inner core. (p. 191)
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A miniature missile shot from a cannon has demonstrated for the first time in free flight that a futuristic jet engine called a scramjet can propel itself. (p. 191)
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Before the decade is out, towering wind-driven balloons may roam the Martian surface, traveling far more extensively than wheeled rovers do. (p. 191)
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