Learn how to calculate the speed of a mass in a circular pendulum with this clear physics tutorial! Step-by-step explanations make it easy to understand circular motion, energy, and angular velocity.

Master vector derivatives in polar coordinates with this clear physics tutorial! Learn step-by-step how to compute derivatives, understand radial and angular components, and apply them to mechanics ...

Getting started with Cocos2d can seem a bit intimidating since there are so many things to learn in addition to knowing the basics of how to use Xcode and write Objective-C code. This article is a ...