Science

6:43am

Mon October 15, 2012

6:15am

Sun October 14, 2012
Science

A Human-Powered Helicopter: Straight Up Difficult

Originally published on Mon October 15, 2012 8:00 am

Kyle Glusenkamp pilots Gamera, a human-powered helicopter.
Maggie Starbard NPR

"I grew up wanting to fly," says Graham Bowen-Davies. "I guess I just settled for being an engineer."

He's standing on an indoor track in southern Maryland, watching a giant helicopter take flight. At the end of each of its four spindly arms — arms he helped design and build — a giant rotor churns the air. In the cockpit sits the engine: a 0.7-horsepower, 135-pound graduate student named Kyle Gluesenkamp.

Gluesenkamp is pedaling like crazy to keep the rotors spinning and the craft aloft.

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6:34am

Sat October 13, 2012
Space

For Sale: A Chunk Of Mars

Originally published on Tue October 23, 2012 12:31 pm

A fragment of the meteor that crashed into Tissint, Morocco.
Mark Mauthner Heritage Auctions

Few things are as rare as a piece of rock that falls from outer space and crashes onto Earth.

Among the most prized of these meteorites are from Mars. Friday, scientists describe the latest one discovered: It's called Tissint, and this weekend you can buy a piece of it.

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11:44am

Fri October 12, 2012
Science

Prehistoric 'Kennewick Man' Was All Beefcake

Originally published on Fri October 12, 2012 5:41 pm

Forensic artists think this is what Kennewick Man looked like.
Brittney Tatchell Courtesy of Doug Owsley

For nearly a decade, scientists and Northwest tribes in Washington state fought bitterly over whether to bury or study the 9,500-year-old bones known as Kennewick Man. Scientists won the battle, and now, after years of careful examination, they're releasing some of their findings.

For starters, Kennewick Man was buff. I mean, really beefcake. So says Doug Owsley, head of physical anthropology at the Smithsonian's National Museum of Natural History, and the man who led the study of the ancient remains.

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9:18am

Fri October 12, 2012
Krulwich Wonders...

Sun Goes Down. Up Comes A Mystery

Originally published on Fri October 12, 2012 9:53 am

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