magna doodle on technabob...

This unique electromechanical clock is like a cross between a Magna Doodle and an Etch-a-Sketch.

Using a modified Magna Doodle as the basis for their display, the Clock-a-Doodle-Doo is the brainchild of a recent UCLA mechanical engineering class.
The clock uses a XY plotter-like mechanism to “draw” the current time by neatly arranging the magnetic particles with a mechanical pen…