clock-a-doodle-doo: Magnetic Particles and Electromechanical Clock

Looking at this Clock-a-doodle-doo is just like looking on a child playing with their own magnetic particle based white board.

clock-a-doodle-doo using its mechanical pen to pull the magnetic particle from the back layer to the from to show you the time. And on every minute changes, a full bar of block behind the display will ‘erase’ the drawing by pulling it back to the original state.

See Clock-a-doodle-doo clock in action:

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

— by TechnaBob

( Source: Technabob )

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