Eulers Disc

Sign up for the Grand Illusions newsletter, at _______________________________________________________________________ SUBTITLES AVAILABLE Euler’s Disc (Euler is pronounced ’Oiler’) is a fascinating physics toy that mesmerises everyone that sees it. The base is a slightly concave mirror. There is then a heavy metal disc, which you place on the mirror, and spin. What happens then? Well, just like spinning a coin on a table, the disc both spins and rolls, until it comes to a sudden stop, the final stages being accompanied by a sound of increasing frequency. A coin spun on a table will not spin for all that long. Euler’s Disc, by contrast, spins for a long time before coming to rest. In addition, there are a number of magnetic holographic decals that you can attach to the upper side of the disc to enhance the effect of the spinning action. The best thing really is to watch the video. It is a lot of fun showing this to someone who has not see