Science

All Tech Considered
3:26 pm
Thu November 14, 2013

Electric Cars Drive Demand For Cheaper, More Powerful Batteries

A prototype of a flexible battery from Imprint Energy, one of 40 companies working on battery technology in the San Francisco Bay Area.
Imprint Energy

Originally published on Thu November 14, 2013 6:29 pm

If there's one person you'd expect to have an electric car, it's Venkat Srinivasan. He's in charge of battery research at the Lawrence Berkeley National Laboratory in California.

"I'm actually in the market for a new car and would love to buy an electric car," he says. "But there are practical problems."

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Shots - Health News
1:44 pm
Thu November 14, 2013

Bacterial Competition In Lab Shows Evolution Never Stops

The plate on the left contains about equal numbers of colonies of two different bacteria. After the bacteria compete and evolve, the lighter ones have taken the lead in the plate on the right.
Courtesy of Michael Wiser

Originally published on Fri November 15, 2013 9:49 am

Evolution is relentless process that seems to keep going and going, even when creatures live in a stable, unchanging world.

That's the latest surprise from a unique experiment that's been underway for more than a quarter-century.

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Animals
1:35 pm
Thu November 14, 2013

Old Dogs, New Data: Canines May Have Been Domesticated In Europe

A dog burial in Greene County, Ill. This fossil dates back to about 8,500 years ago.
Courtesy of Del Baston, Center for American Archaeology

Originally published on Thu November 14, 2013 7:34 pm

Scientists have used some new tricks and old dogs to show that thousands of years ago, wolves may have first become man's best friend in Europe.

Researchers extracted DNA from ancient wolf or dog fossils and compared it with DNA from modern dog breeds and wolves. Until recently, labs didn't have the kind of genetic tools they'd need to work with such old dog DNA and do this kind of detailed comparison.

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The Two-Way
1:33 pm
Thu November 14, 2013

Tennessee Valley Authority To Close Several Coal-Fired Plants

An air-monitoring station near the TVA Kingston Fossil Plant in Kingston, Tenn. Stations such as this one are used to monitor clean-air compliance of TVA coal-fired plants.
Wade Payne AP

Originally published on Thu November 14, 2013 3:47 pm

The Tennessee Valley Authority, the nation's largest public utility, has decided to close six coal-fired power plants in Alabama and replace two others in Kentucky with a single new natural gas station.

CEO Bill Johnson made the announcement at a Thursday board meeting in Oxford, Miss., citing stricter environmental regulations and flat demand for power.

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Krulwich Wonders...
7:50 am
Thu November 14, 2013

My Wine Won't Stop Crying — A Mystery In A Wineglass

Dan Quinn YouTube

Originally published on Thu November 14, 2013 12:23 pm

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