This is a pretty interesting video about fungi. Even though Richard Hammond is pretty cool, he does confuse speed with acceleration. When you say "fastest in the world," I expect you to talk about the ...

Introduction Have you ever played a video game with a controller that used motion controls? Do you ever wonder how sometimes a smartphone seems to "know" if you're moving? How do these electronic ...

The normal component of acceleration is known as the “centripetal” component. It is proportional to the square of the speed, and inversely proportional to the radius of curvature of the path. The ...