Talk Of The Nation

Scientists have cooled potassium gas to one billionth of a degree below absolute zero. But in the quantum world, that's actually hotter than the Sun. It's hotter, even, than infinity degrees Kelvin. Vladan Vuletić, a quantum physicist at MIT, talks about this 'Bizarro World' temperature.

Catfish eating pigeons, water travelling uphill, a blue whale barrel roll — where can one see such things? The scientific journals! Flora Lichtman and Ira Flatow look back on the year's best moments in science cinema. What was your favorite science video of the year?

Cold-water fish, snow-dwelling bugs and some grasses have evolved natural antifreeze proteins to avoid turning to ice cubes. Peter Davies, a biologist at Queen's University in Ontario, discusses how these antifreeze substances work, and their applications for human problems--like keeping the ice out of ice cream.

In Full Planet, Empty Plates: The New Geopolitics of Food Scarcity, Lester Brown says the world's food supply is tightening, and the reasons are many. People in developing countries are eating more meat, a grain-intensive food; farmers are overpumping, causing water tables to fall; and crop yields have plateaued, despite technological advances.

One of the cornerstones of American democracy is the pledge that every federal officer takes to preserve, protect and defend the Constitution.

In a piece in The New York Times, Georgetown law professor Mike Seidman argues that our reliance on the document has created a divisive and dysfunctional political system.

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NEAL CONAN, HOST:

If plans go ahead, the F-35 Joint Strike Fighter will be the workhorse of the Air Force, Navy and Marines for decades to come. The F-35 boasts a sleek profile that makes it nearly invisible to radar, and it's scheduled to replace as many as 10 planes that are currently in service, including the venerable F-16. Lieutenant Colonel Todd LaFortune is among the first to make the transition.

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NEAL CONAN, HOST:

This is TALK OF THE NATION. I'm Neal Conan, in Washington. Every year, we look back at some of the books we missed the previous year. Today, "How to be a Woman." British columnist and critic Caitlin Moran describes that process through her own experiences, the embarrassing moments of puberty and the perils of fashion, career, marriage, childbirth and along the way explores what it means to be a feminist today and does it all with a rare sense of humor.

Talk of the Nation kicks off the new year by taking time to follow up on some stories from 2012. NPR's Neal Conan talks with some of the memorable guests and callers from 2012, including a farmer devastated by drought and a new mom evacuated from a hospital during Superstorm Sandy.

NPR's Political Junkie Ken Rudin recaps the week in politics from the winners and losers of the 'fiscal cliff' deal to Secretary of State Hillary Clinton's health concerns. Incoming freshman representatives Michelle Lujan Grisham (D-NM), Kyrsten Sinema (D-AZ) and Doug LaMalfa (R-CA) share their expectations as new members of Congress.

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NEAL CONAN, HOST:

This is TALK OF THE NATION. I'm Neal Conan in Washington. Early this morning, the Senate approved a fiscal cliff package that includes some important steps forward on taxes, an unemployment extension and a new farm bill, among others. But now it appears that bill may be in trouble in the House of Representatives. NPR senior Washington editor Ron Elving joins us now from his home here in Washington, D.C. Ron, Happy New Year.

RON ELVING, BYLINE: Happy New Year to you, Neal.