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Lightweight Simply put, this is a light dimmer control which responds to the weight of marbles in a dish. More marbles equals brighter light! |
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| A bowlful of marbles which seem to glow of themselves.
From the user perspective, the marbles are the light. Dropping them in the bowl brings them to life. | |
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| The first prototype. |
The housing splits easily, allowing access to the bulb. |
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| The lamp in action. | |
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| The control circuitry, housed in
the base of the lamp. The weight sensitive portion of the circuit (9 VDC)
is optically isolated from the dimmer portion (120 VAC). |
The 9 volt battery has been removed, exposing the force sensitive resistor. (black circle) |
Copyright Jim Gouldstone 2004 |