Talk of the Nation on KTTZ HD2

Hosted by Neal Conan

Each day, Talk of the Nation combines the award-winning resources of NPR News with the vital participation of listeners. The result is a spirited and productive exchange of knowledge and insight that delves deeply into the news and ideas of the day.

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Science
1:04 pm
Mon November 26, 2012

As Dec. 21 Draws Nigh, The Facts About Doomsday

Some doomsayers predict that the world will end on Dec. 21, 2012, citing the end of the pre-Columbian Mayan calendar.
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Originally published on Tue November 27, 2012 1:44 pm

On Dec. 21, 2012, some fear that a rogue planet will collide with Earth and destroy the planet, or that the supposed end of the Mayan calendar will lead to the obliteration of the universe.

When people have questions about these scenarios, they often turn to the Internet.

NASA astrobiologist David Morrison has taken it upon himself to enter that online conversation and answer hundreds of questions about the science of existential threats.

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Around the Nation
1:04 pm
Mon November 26, 2012

The Conversations About Infidelity On The Homefront

Originally published on Mon November 26, 2012 3:04 pm

The sex scandals of Gen. David Petraeus and Brig. Gen. Jeffrey Sinclair have triggered public conversations about ethics, national security and leadership. These high-profile cases of infidelity have also prompted private conversations about the challenges of military marriage.

Food
1:25 pm
Fri November 23, 2012

Ig Nobel Prizes Celebrate Somewhat Suspect Science

Originally published on Fri November 23, 2012 1:49 pm

The Ig Nobel Prizes honor scientific research that, in the words of Master of Ceremonies Marc Abrahams, "first makes you laugh, and then makes you think." This year's prizes, awarded in late September, include citations for research into mysteriously green hair, potentially explosive colonoscopies, and the creation of equations that model the back-and-forth swing of a ponytail in motion.

Science
1:18 pm
Fri November 23, 2012

Steven Strogatz: The Joy Of X

Transcript

IRA FLATOW, HOST:

Get out a pencil and paper and your graphic calculator because it's time for a little math review. And we'll warm up with some algebra, move on to imaginary numbers, then the quadratic formula, and we're going to finish up with a bit of vector calculus, how about some probability theory thrown in. No, no, no, I'm just joking. Don't turn off the radio just yet.

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NPR Story
1:07 pm
Fri November 23, 2012

NPR: The Ugly Truth About Food Waste in America

Originally published on Tue November 27, 2012 7:17 am

Transcript

IRA FLATOW, HOST:

Up next, some food for thought as you chomp your Thanksgiving leftovers. Recycling paper and plastic, as you know, is an effective way to save money and energy. So why not recycle all the uneaten food that goes to waste? And there is an awful lot of it. Forty percent of the food in the U.S. today goes uneaten, which means Americans are throwing out the equivalent of $165 billion worth of food each year. But that's not all. Food waste, as it decays in landfills, also produces methane, which is a potent greenhouse gas.

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