In music theory, the tritone is an interval of three whole steps that can sound unresolved and creepy. Over time, the sound has wound up in jazz,... The Unsettling Sound Of Tritones, The Devil's ...

Hit a plateau? Fire up your workouts and your fat-burning potential by including intervals. Sound scary? They're not! Intervals are just a fancy name for an exercise program that alternates heart ...

It started when Ozzy Osbourne gave Geezer Butler a cryptic book of black magic. Butler had been dabbling in the occult, and moving away from the Catholicism that was so dear to him. But that night ...