The earliest scientists first observed the waves that earthquakes produce before they could accurately describe the nature of earthquakes or their fundamental causes, as discussed in Lessons 1–5.

Need guitar strings or a new pair of maracas? A musical equipment retail shop is opening this week in the North Cass Corridor. Third Wave Music is a full-service music shop that offers music lessons, ...

Perhaps the most iconic instrument in modern rock is the guitar. It's really just a bunch of strings stretched across a board, which you can strum to make awesome tunes, thanks to the physics of waves ...