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Could Light bulb use citrus as source?

Updated: 8/18/2019
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14y ago

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In practical terms, no.

Experiments show that the available current is less than 20 milliamps, at a voltage of a volt or less.

This may be enough to make a high-efficiency light-emitting diode glow, but "light bulb" implies an incandescent (filament in glass) lamp, and the available power is insufficient.

There is a workaround - use a "lemon battery" to charge a high-capacitance capacitor (a one farad "super-capacitor"), then use the super-capacitor to drive the light bulb as it discharges.

The Science Writer in me gets a bit frustrated at the numbers of books (science, hobbies and others) that continue to show this as a practical exercise.

This writer also gets *very* grumpy over the books (nearly *all* of them) that show the Bernoulli effect (high-speed airflow over the top of the wing) as the sole mechanism producing lift in an aerofoil (!)

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Q: Could Light bulb use citrus as source?
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