Science

The Two-Way
2:56 pm
Fri May 31, 2013

Report Of Liquid Woolly Mammoth Blood Prompts Clone Talk

A file photo from 2011 shows a man touching a giant bronze sculpture of a mammoth in the Siberian city of Khanty-Mansiysk. A team of Russian and South Korean scientists who found a well-preserved frozen woolly mammoth carcass this month say it also included blood.
Natalia Kolesnikova AFP/Getty Images

Originally published on Fri May 31, 2013 3:38 pm

Scientists in Siberia say they've extracted blood samples from the carcass of a 10,000-year-old woolly mammoth, reviving speculation that a clone of the extinct animal might someday walk the earth, if scientists are able to find living cells. But researchers say the find, which also included well-preserved muscle tissue, must be studied further to know its potential.

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Research News
12:18 pm
Fri May 31, 2013

Gizmo Uses Lung Cells To Sniff Out Health Hazards In Urban Air

Adam Cole NPR

Originally published on Fri May 31, 2013 8:23 pm

Cities like Houston are dotted with air-sniffing monitors that measure levels of benzene and other potentially unhealthy air pollutants. But those monitors can't answer the question we care about most: Is the air safe?

That's because there's no simple relationship between toxic air pollutants and health risks. Researchers at the University of North Carolina in Chapel Hill are trying to get a leg up on that problem. They are building an instrument that uses human lung cells to measure health hazards in the air more directly.

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Science
11:24 am
Fri May 31, 2013

The SciFri Book Club Takes a Hike

The book club regulars gather to chat about the best-sellingA Walk in the Woods, writer Bill Bryson's 1998 account of a hiking trip along the Appalachian Trail. Plus, journalist Deborah Blum joins the club to talk about the best science books to stash in your beach bag (or backpack).

NPR Story
11:09 am
Fri May 31, 2013

With Chemical Tweaks, Cement Becomes A Semiconductor

Transcript

IRA FLATOW, HOST:

This is SCIENCE FRIDAY, I'm Ira Flatow. In 2011, a group of researchers in Japan made a surprising discovery: With the right process, they could turn cement, in fact a component of the Portland cement you can find in the hardware store, they can turn that into a metal, and in its metallic state they could coax the cement to act as a semiconductor.

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NPR Story
11:09 am
Fri May 31, 2013

Bad Diagnosis For New Psychiatry 'Bible'

Originally published on Tue June 4, 2013 6:22 pm

Transcript

IRA FLATOW, HOST:

There's ADHD, OCD, DMDD, PTSD, along with hoarding disorder, oppositional defiant disorder and dissociative identity disorder. You will find all of them in the DSM, that's the Diagnostic and Statistical Manual of Mental Disorders, the so-called Bible of psychiatry. The fifth edition of the manual just came out after 14 years in the making, but instead of a round of applause, psychiatrists, psychologists, ethicists, even columnist are panning the book, saying it has outlived its usefulness.

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