In this lesson inspired by Molly Tuttle, Trey Hensley and the O.G. of acoustic folk playing Maybelle Carter, we'll make one guitar sound like two with arrangements alive with rhythm and melody ...

A buoyancy problem involving a ping pong ball, an iron ball, a few strings, some water, and a set of scales is causing a few arguments on Reddit where it was posted. "Where would the scale tip?

While the study’s conclusions aren’t surprising, its scale and comprehensiveness are remarkable. “It’s a spectacular article in terms of magnitude,” says Salvador Macip, a researcher on aging, who was ...