NORFOLK, Va. — The Saffir-Simpson Scale. You've heard of it, you've even used it to talk about hurricanes with your friends and family. But how much do you really know about it? Each time you hear a ...

Wind is the invisible force we feel on our faces, see rustling through trees, and hear whistling around buildings. But what exactly is wind, and why does it behave the way it does? At its core, wind ...