Why does an object spin at a different axis at high speeds?

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When a cylindrical magnet is spun rapidly on its long edge, it begins to rotate around its outer end due to the principles of angular momentum and gyroscopic stability. At high speeds, the distribution of mass and the shape of the magnet influence its axis of rotation, causing it to shift from its original axis. This behavior is similar to that of a rattleback, which also exhibits unique spinning characteristics based on its shape and mass distribution. The transition from stable to unstable rotation occurs as the speed increases, demonstrating fundamental physics concepts. Understanding these dynamics can provide deeper insights into rotational motion and stability.
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I have a magnet that has a cylindrical shape, where the center is slightly larger than its outer sides. I was wondering why it beings to spin on its outer end when spun very fast (on its long edge). Whereas if its spun not too fast, it stays on its axis.

I have included a photo for further understanding of my question. This may be simple, but I'm new to physics, and would love a detailed explanation- it really fascinates me. Thanks! :)

Screenshot_2016-02-13-00-47-03.png

Screenshot_2016-02-13-00-45-25.png
 

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