Speed is the rate at which something moves. Fast-moving objects have high speeds, slow-moving ones have low speeds, and objects with no movement have zero speed. Velocity, on the other hand, is speed ...

Discover the fascinating physics of a hockey puck’s velocity change using the momentum principle, a fundamental concept in classical mechanics that explains how forces influence motion. In this video, ...

Speed alone may be the factor that draws many sports fans to the bobsled, luge and skeleton events at this year's Beijing Winter Olympics. But beneath the thrilling descents of the winding, ...

Could you build an air-powered canon to launch a baseball faster than the speed of sound? Apparently, the answer is "yup." Check out this build from Smarter Every Day on YouTube. It's pretty awesome.