Talk of the Nation

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IRA FLATOW, HOST:

This is SCIENCE FRIDAY. I'm Ira Flatow. Of course we'll be following any updates in the school shooting in Connecticut that has left dozens of people dead, including children and the gunman. Any updates that are necessary, we'll break in and let you know.

Imagine one day, just one day, where the world you saw was upside-down: water poured up; smoke drifted down; balloons acted more like lead weights. It might be enough to drive you crazy. Could you handle two days? Three? How about 10 days with your vision turned completely on its head?

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IRA FLATOW, HOST:

Nothing beats the smell of a live Christmas tree in your home, but how can you keep the needles on your tree and off your carpet? Rick Bates, professor of horticulture at Penn State University, offers tips for how to properly care for your Christmas tree this holiday season.

Did you know plants use quantum mechanics every day? That quantum computers can hack the encryption used in online commerce? Or that a 'quantum internet' could someday teleport your emails? MIT's Seth Lloyd discusses those and other quantum mysteries in this episode of "Ask a quantum mechanic."

Alan Alda founded The Flame Challenge last year to promote better science communication, and he started by asking scientists to come up with a kid-friendly explanation for a flame. Now, Alda is back with round two of the popular contest, and kids want to know: What is time?

In 2013 and 2014, there will be a number of substantial realignments in the NCAA conferences. Some believe that the realignment process will ultimately result in the creation of four "super conferences." NPR's Mike Pesca talks about how conference shifts could effect the future of college athletics.

A military coup brought down Mali's prime minister in March, allowing radical Islamists from Mali and surrounding areas to take hold of an area the size of Texas. As al-Qaida-linked militants take over the northern part of the country, many wonder what the U.S. and other can do to intervene.

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NEAL CONAN, HOST:

This is TALK OF THE NATION. I'm Neal Conan in Washington. We're in the worst drought since the 1950s, according to NOAA, and while we associated extended dry spells with summer, conditions out west have remained unchanged since the warm weather ended.

President Barack Obama is expected to make some key changes to his second-term cabinet. As Hillary Clinton prepares to step down as Secretary of State, many wonder whether she will run for president in 2016.

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NEAL CONAN, HOST:

This is TALK OF THE NATION. I'm Neal Conan in Washington. This year's flu season started early. Eight states already report widespread flu activity, and doctors say it's a nasty strain this year, too. The good news is this year's vaccine is a good match. But even so, the flu will kill thousands more, probably tens of thousands of Americans, before it runs its course. Why? And what more can we do to reduce that number?