Talk of the Nation

Sen. Daniel Inouye (D-Hawaii) was known for his military service during World War II and his work to improve Hawaii's infrastructure. When he died on Dec. 17, 2012, he was the second-longest serving senator in U.S. history. Bill Dorman, news director at Hawaii Public Radio, reflects on what made him so influential in Hawaii.

NPR's Neal Conan reads from listener comments on previous show topics, including segments how children change when they learn about notorious parents and the growing conflict in Mali.

Twenty students and six teachers were killed when a gunman opened fire at Sandy Hook Elementary School in Newtown, Conn. As police continue to investigate the massacre, some argue that it's time to change the conversation about guns in America.

Tragic events like the mass shooting at a Newtown, Conn. elementary school leave us with all sorts of unanswerable questions. What do events like the shooting in Newtown say about the cultural identity of the United States?

Journalist Rob Cox grew up in Newtown, Conn. and moved back after many years abroad. Cox, editor for Thompson Reuters global commentary service Breakingviews, talks about how the mass shooting at Sandy Hook Elementary School has transformed his hometown.

Transcript

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?

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?

Transcript

IRA FLATOW, HOST: