Talk of the Nation on WKNO HD-2

When Americans want to be a part of the national conversation, they turn to Talk of the Nation, NPR's midday news-talk show.

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NPR Story
12:00 pm
Fri February 17, 2012

Concrete's Role As A Building Block In History

In his book Concrete Planet, author Robert Courland discusses why the concrete first used by the Romans is more durable than the concrete used in most present day buildings. Plus, mineralogist Peter Stemmerman tells us about his invention, Celitement and why it is greener than Portland cement.

NPR Story
12:00 pm
Fri February 17, 2012

Digital Tools Help Document Vanishing Languages

Linguist David Harrison has travelled to remote corners of the world seeking the last speakers of endangered languages. Now, he's using digital tools to to record and revitalize these dying languages. At the AAAS meeting this week, Harrison unveiled 'talking dictionaries' for eight languages.

NPR Story
12:00 pm
Fri February 17, 2012

Desert Military Bases Could Be Boon To Solar

Originally published on Fri February 17, 2012 4:52 pm

Transcript

IRA FLATOW, HOST:

This is SCIENCE FRIDAY. I'm Ira Flatow. Last week, the government approved the first new nuclear reactor power plants in over 30 years, but in the meantime, the Department of Defense has been investigating a different energy source for its military bases: solar.

My next guest says the military could install seven gigawatts of solar power on its bases. That's roughly equivalent to the output of seven nuclear power plants, and that's all without interfering with bombing ranges or rocket tests and of course the desert tortoise.

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NPR Story
12:00 pm
Fri February 17, 2012

Should Sugar Be Regulated Like Alcohol?

Writing in the journal Nature, UCSF pediatrician Robert Lustig and colleagues suggest regulating sugar just like alcohol and tobacco--with taxes and age limits, for example--due to what they call the "toxic" effects of too much sweet stuff. Education, they say, is not enough.

NPR Story
12:00 pm
Fri February 17, 2012

Air Pollution Ups Risk Of Stroke, Impaired Memory

Originally published on Fri February 17, 2012 4:52 pm

Transcript

IRA FLATOW, HOST:

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