A basic pendulum is a mass at the end of a string that swings back and forth. It seems simple, and it appears in most introductory physics textbooks. But it's not a trivial problem to solve for the ...

I am going to make a prediction. As people start to get bored with their fidget spinners, they are going to start playing with these double pendulum fidget spinners. The normal spinner has a bearing ...

ORLANDO — Watching Lee Trevino hold court on the driving range is one of golf's great treats. And it’s happening this week at the PNC Championship. Ahead of this year's contest, Golf Digest had a ...