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hyperbolic clock with explanation
The hyperbolic clock is all about the parametrization. Press the explain button to see why it moves the way it does.
This clock is made from 4 pieces of parabola. Drag the red 'control points' to change its shape.
I remember seeing a 4 bar linkage clock on the wall of a mechanical engineering professor. Here is my take on that. (Green points can be dragged)
Four Bar Linkage
You can drag the vertices of the shadow linkage to alter its geometry. Can you create a linkage which draws a figure 8? How about the letter D? How close to a straight line can you get? If you like this, you might like my
4 bar linkage clock app
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