Engineering, Physics
Gyroscope Disk and Mass
Perform a unique experiment: Rotate two disks in opposite directions and see the resulting lack of precession.
Perform a unique experiment: Rotate two disks in opposite directions at the same speed. The angular momenta cancel and the total angular momentum of the gyroscope is zero. The result — no precession.
https://www.pasco.com/products/lab-apparatus/mechanics/gyroscope/me-8961#specs-panel