Euler’s Disk is used to illustrate and study the dynamic system of a spinning and rolling disk on a flat or curved surface.
The apparatus is a dramatic visualization of energy exchanges in three different, tightly coupled processes. As the disk gradually decreases its azimuthal rotation, there is also a decrease in amplitude and increase in the frequency of the disk's axial precession.
The evolution of the disk's axial precession is easily visualized in a slow motion video by looking at the side of the disk following a single point marked on the disk. The evolution of the rotation of the disk is easily visualized in slow motion by looking at the top of the disk following an arrow drawn on the disk representing its radius.
The sound and motion of an Euler's Disk pic.twitter.com/kvBFWwaMua
— Historic Vids (@historyinmemes) January 17, 2024