Developing evaluation system that scientifically presents the rotation ability of the top as a score: “koma scouter”

Abstract

Using by the compact disc are able to easily make an original top. This CD top will support in the learning of the gyroscopic and moment of inertia. Therefore, sometimes it become to a theme of experience course of Science Museum. We using on this CD tops, has developed a “Koma Scouter” as a system to connect the original tops making and edutainment. This system first shooting top of arranging the color nut on the CD in USB camera. Next, the system presents to user the score of rotation ability of the tops taken by image analysis. By presenting the rotation score top the user own, the user can recognize performance of the top that own it. In this paper, we describe a method for recognizing the color nuts, which are arranged in the CD, and a method of evaluating the rotation score of the CD top. As a result of using this system in scientific events, Kids of about 40% has reworked the top.