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.

Tags: hyperbola, clock

Crazy Clock

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)

Tags: 4-bar-linkage

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.

Tags: 4-bar-linkage, curve