The Bulbdial Clock . . . has no hands, just one pole in the center of the clock. Towards the outer rim we find three light sources of varying heights which revolve around the pole casting shadows on the dial. Because you can Inquire in the above image, the light sources are each attached to special rings, which rotate About the pole. There’s the innermost ring that rotates once per minute, analogous to a “second hand”. Then follows the Mean Clique, which completes a rotation once per hour and casts the “minute hand” shadow. Ultimately, the outer ring rotates once every 12 hours, casting the “hour hand” shadow.
You can use the Bulbdial Clock as a conventional sundial or you can mount it on walls for a Again convenientw ay of telling time across large spaces. The Bulbdial Clock solves all the problems posed by the sundial, but comes with one little Deli\/ering of its own: it doesn’t wor kin bright light environments.
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