Talk of the Nation

Guest host John Donvan reads listener comments from past shows about witnessing tragic events, adoption in the Internet age and how to fill time while you wait.

Transcript

JOHN DONVAN, HOST:

This is TALK OF THE NATION. I'm John Donvan in Washington; Neal Conan is away. Five words, let's sing them.

(SOUNDBITE OF SONG, "I'LL BE HOME FOR CHRISTMAS")

DEAN MARTIN: (Singing) I'll be home for Christmas...

For most of us, riding from floor to floor in an elevator is a completely mundane process. Lee Gray, an associate dean at the University of North Carolina at Charlotte, is known as the Elevator Guy. He spends a lot of his time researching the history of elevators and why we behave so oddly in the big metal boxes.

Transcript

JOHN DONVAN, HOST:

Photographer Colin Legg makes time-lapse movies of celestial scenes, from auroras to eclipses. Photographing mostly in remote parts of Australia, where human-made light doesn't compete with starlight, Legg describes some of the challenges of this type of photography: from babysitting cameras for days and nights on end to running electronics in the backcountry.

The Audubon's 113th Christmas Bird Count is underway, and thousands of volunteers are taking part this year. Ornithologist David Bonter, and Gary Langham, Audubon's chief scientist, share tips on which species to look out for, and how even birding beginners can get involved.

The SciFri Book Club is touring the solar system, with Dava Sobel's 2005 The Planets. Call in with a review of the book. Plus Jim Green, director of planetary science at NASA, joins the club to give an update on what's happened planet-wise since the book was published.

Reporting in Science Translational Medicine, researchers write that neural stem cell implants were able to slow the onset of amyotrophic lateral sclerosis (ALS), or Lou Gehrig's disease, in mice. Study author Evan Snyder discusses the stem cells' protective effect, and why human trials may not be far behind.

Within the past year, North Korea, China, Japan and South Korea have all elected new leadership. The shifting powers in Northeast Asia have major implications for a region the includes three of the world's major economies.

A report by the National Intelligence Council projects that in 2030 the U.S. influence in global affairs will decrease, China will continue to rise as a global power, and a global middle class will grow significantly.