This season we are making a few "radio gifts." We've asked listeners to suggest stories, interviews or just sounds they'd like to hear on the radio. Today's present goes out to a listener in Oakland, ...

Rhonda asks: I work at Fallingwater. Why does it seem like the only time you can hear the train whistle is when it is going to rain? So, we have a couple of clues: You hear a train and then it rains.