3 ms·
Reminds me of the tumbling T-handle. A small tool is spun up in one axis, and due to some interesting physics, ends up flipping over on another axis every few s
by accrual 1y ago
Reminds me of the tumbling T-handle. A small tool is spun up in one axis, and due to some interesting physics, ends up flipping over on another axis every few seconds.
https://rotations.berkeley.edu/a-tumbling-t-handle-in-space/ https://rotations.berkeley.edu/a-tumbling-t-handle-in-space/
- alexey-salmin 1y agoI wonder if it's reproducible in vacuum or the air is necessary to destabilize it?
- bunderbunder 1y agoIt's about angular momentum and happens whenever the axis of rotation differs - even slightly - from the semi-major axis. Interaction with a fluid is not necessary. You can demonstrate it at home with your smartphone (or, more canonically, a tennis racket), and see for yourself that the tumbling happens much too quickly to be explained by whatever force the air is imparting.