We play some never-released tape from the vault, and reveal a bit about what techniques we used to try and make it sing.

Earlier this year, Jad and Robert visited the Koshland Science Museum in Washington D.C. to give listeners a behind-the-scenes look at Radiolab. The question here is just how far can you go in the name of making an idea clear? What's allowed? Is music allowed? Are sound effects allowed? What helps? What hurts?

Also, if you enjoyed this conversation, you may want to check out the other Radiolab process talks, like this one at Oberlin College in the spring and another last fall at the Apple store in New York. And if you didn't enjoy...don't worry--new Radiolab shows are coming soon!