While few people toss around terms like Astroparticle Physics and Superstring Theory, we've all found ourselves staring out in to space on a starry night wondering what's out there, why it's arranged the way it is, and where it all came from. For some, it simply comes down to strings. This September 2, 2003 New York Times article does a good job of summarizing the history and specifics of...

This Topic in Depth focuses on the physics of sound waves and its applications in other science realms. The first four educational Web sites concentrate on sound wave properties and musical instruments. Dan Russell, a professor of Applied Physics at Ketting University, created the first site (1) to provide students animated images of sounds and vibrations produced by instruments such as...