U.S.

Pounding Pavement In Search Of A Smoother Drive()  

The University of California Pavement Research Center in Davis works on creating longer lasting, quieter and more fuel-efficient pavement. Above, samples of asphalt being tested at the center.

February 20, 2012 As many of the nation's highways continue to deteriorate, the funds to fix them are dwindling. In California, researchers are developing next-generation pavements that are quieter, more durable and more fuel-efficient, all on a tight budget.

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Around the Nation

As Bear Population Grows, More States Look At Hunts()  

A family of bears investigates a Dumpster behind a diner in Pomona, N.Y., last fall. Black bears are becoming more common in populated areas around the United States.

February 20, 2012 WPLNWildlife officials don't usually base hunting policy on the public's view about an animal. But the black bear seems to be different — it has bounced back from near-extinction to being a nuisance in some areas. Now the question is, would people rather live with bears, or keep their numbers in check?

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Health

What's The Cure In The Race Against Breast Cancer?()  

 Breast cancer survivors stand to form the shape of a pink ribbon at a Susan G. Komen Foundation charity race in Tyler, Texas, in 2004.

February 19, 2012 The number of deaths from breast cancer has gone down, but the rate of new cases remains about the same. One family has had three generations of women survive the disease. A two-time survivor in that family sometimes hears, "There's so much money that's given all the time, why can't they find a cure?"

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Technology

Building A Village Starts With Building The Tractor()  

Designed and built on Marcin Jakubowski's farm, this tractor cost far less than a commercial tractor.

February 19, 2012 Do-it-yourselfers have made everything from bamboo bicycles to 3-D printers, but nothing as ambitious as the Open Source Ecology project. On a farm in northwest Missouri, tractors and other industrial machines are made from scratch, with detailed plans on how to do it yourself shared online.

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The Two-Way

VIDEO: A Tornado On The Sun()  

Plasma streams off the surface of the sun in this image from earlier in February.

February 17, 2012 A new NASA satellite captured a massive tornado on the surface of the sun.

Summary

Shots - Health Blog

WHO Panel Supports Publication Of Bird Flu Details, Eventually()  

February 17, 2012 Research that produced genetically altered bird flu viruses that could pose a danger to people should remain on hold for now. But a panel of experts recommended the details of the experiments should be published.

Summary

Shots - Health Blog

WHO Affirms Use Of Birth Control Injections After Weighing HIV Risks()  

A health worker injects a woman with a shot of Depo Provera, a quarterly contraceptive injection, at a health clinic in Busia, Uganda, in 2009.

February 17, 2012 The WHO upheld its guidelines on the safety of hormone injections for contraception yesterday, despite some data that users are at increased risk of HIV transmission. An expert panel says the evidence isn't solid yet, and at-risk couples should use a second method, like condoms, for HIV prevention.

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Krulwich Wonders...

Nuking My House On Line (You Can, Too)()  

A screen grab from http://nuclearsecrecy.com/nukemap/ illustrating the damage done to Washington, DC in the event of the detonation of a 100 megaton bomb at NPR headquarters.

February 17, 2012 Andrew Wellerstein is a mad bomber — but a careful, data-driven, history-minded mad bomber. The science historian's latest project gives you the fascinating, terrifying power to detonate.

Summary

Shots - Health Blog

Questions About Bird Flu Research Swirl Around Private WHO Meeting()  

H5N1 avian flu viruses (seen in gold) grow inside canine kidney cells (seen in green).

February 17, 2012 A small group has gathered at the World Health Organization in Geneva to discuss a controversy over experiments that generated genetically altered viruses. After the meeting, which ends Friday, the WHO will announce what happened behind closed doors.

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Science Friday Podcast

Science Friday Podcast

Science Friday is a weekly discussion of the latest news in science, technology, health and the environment hosted by Ira Flatow. Visit this podcast's Web site.

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