Concept cars usually stay exactly where they belong: on rotating turntables at auto shows, safely quarantined from the mundane realities of crash testing and consumer budgets. Yet every so often, the ...

One of the joys of living in a big city is finding out how much of the city survives from years gone by, just beneath the tinsel of renovation. That's part of the reason why I found this old rotating ...

In this video, we determine the maximum angular speed a coin can have on a rotating turntable without slipping. By analyzing static friction and centripetal force, you’ll learn how rotational dynamics ...