Talk of the Nation

How do astronauts take a bath in space? What happens to their sense of smell in a weightless environment? Two NASA astronauts aboard the International Space Station discuss the challenges of life in low Earth orbit and how their research is a stepping stone for future space exploration.

In a new book, To Forgive Design: Understanding Failure, engineer Henry Petroski chronicles disasters from the sinking of the Titanic to the destruction of space shuttles Challenger and Columbia. Petroski discusses why these accidents are often caused by factors other than a design flaw.

From farting fish, to the laws of stupidity, Marc Abrahams (editor and co-founder of The Annals of Improbable Research) has a knack for finding science that "makes you laugh, and then makes you think." Abrahams discusses some improbable research, and why science that might at first seem absurd, matters.

Transcript

IRA FLATOW, HOST:

This is SCIENCE FRIDAY. I'm Ira Flatow. It's easy to assume that we humans rule the Earth. After all, we can clear-cut forests, we can chop the tops off mountains. We can harvest anything we want from the land or the sea. But before we get too cocky, let's not forget about those other titans of the Earth, the bugs.

Transcript

JENNIFER LUDDEN, HOST:

This is TALK OF THE NATION. I'm Jennifer Ludden, in Washington. Neal Conan is away. The man who Florida police first declined to arrest now faces second-degree murder charges for the shooting death of Trayvon Martin. George Zimmerman claims he is not guilty under Florida's Stand Your Ground law, which allows for the use of force in self-defense.