InteractiveTop: an entertainment system that enhances the experience of playing with tops.

A top is a simple toy, yet its behavior is unique when compared with the behaviors of other physical toys. Its attractive behavior is based on the gyroscopic effect acting within the top. We sense the force of the gyroscopic effect when touching or handling them. We consider that this experience helps children become aware of a basic phenomenon of physics. In traditional research[Ishii et al. 1999], a visual and audio effect are often used to augment playging experience of sports or physical toys. In this project, we especially focused on augmentation of physical contact between the tops and the players by using force feedback.