MonkeyJam is a free digital pencil test program that runs on the Windows operating system. It lets you capture images from a webcam, camcorder, or scanner and assemble the separate frames into an animation. You can also import existing images and sound files from your computer. Although it is designed for pencil and paper, MonkeyJam can also be used for stop-motion animation. Once you have created your movie it can be exported as an AVI file.
This demonstrates Newton’s third law of motion, more commonly called action reaction. For every action in one direction, there is an equal and opposite reaction in the opposite direction; even if the object does not move.