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10:30 am
Fri August 31, 2012

Meet Your Ancient Relatives: The Denisovans

Originally published on Fri August 31, 2012 11:13 am

Transcript

IRA FLATOW, HOST:

This is SCIENCE FRIDAY. I'm Ira Flatow. You've probably heard of your distant cousins the Neanderthals, but how about a more secretive member of the family tree, the Denisovans? Yeah, ring a bell? No? That's because traces of Denisovans are hard to come by.

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NPR Story
10:30 am
Fri August 31, 2012

Time To Overhaul America's Aging Bridges?

Originally published on Fri August 31, 2012 11:08 am

Transcript

IRA FLATOW, HOST:

This is SCIENCE FRIDAY; I'm Ira Flatow. Five years ago this month, the I-35W bridge in Minneapolis collapsed, sending a full load of rush-hour traffic into the Mississippi River. The disaster injured nearly 150 people, killed 13. The bridge was literally falling apart.

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NPR Story
10:30 am
Fri August 31, 2012

Unwinding The Cucumber Tendril Mystery

Originally published on Fri August 31, 2012 11:04 am

How a cucumber creates its curling tendril has stumped scientists for centuries, including Charles Darwin and Asa Gray. With the help of time-lapse photography and prosthetic tendril fabricated in the lab, physicist Sharon Gerbode, biologist Joshua Puzey and colleagues figured out why tendrils twist, according to a new study in Science.

The Salt
10:02 am
Fri August 31, 2012

Farmers Use YouTube To Share Devastating Impacts Of Drought

A YouTube user who goes by Katzcradul posted this image of a parched gulch on her drought-stricken land in Missouri on the site.
YouTube

Originally published on Mon October 15, 2012 7:29 am

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Business
9:48 am
Fri August 31, 2012

Bernanke Defends His Efforts To Lift Economy

Transcript

DAVID GREENE, HOST:

NPR's business news starts with the latest comments from Ben Bernanke

(SOUNDBITE OF MUSIC)

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