Article 4
Period and Thickness of a Spinning Disc
by Chulpaibul, S., Colaco, K., Techavutichai, J., Tian, R., Triwatana, A.
Abstract
The relationship between the thickness of a spinning Euler’s Disc and its rotational period was investigated. The study tested Batista’s original theoretical model and aimed to include the effect of thickness on the relationship between time period and gyration angle. Five 50 mm diameter discs with thicknesses ranging from 5 to 25 mm were spun on a smooth granite surface, and recorded at 480 frames per second. The Tracker video analysis program was used to determine the average gyration angle and time period of rotation as a function of angle for each disc. It was found that the thickness of the disc does not have a significant impact on the period of the spinning disc for thicknesses up to the radius of the disc.