photos:
top: sketch of greenhouse full of lemon tree's powering gameboys.
from left clockwise: kumquat powered calculator, testing voltage from lemons, custom game: Count Volta.

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Count Alessandro Volta an Italian physicist, known for his pioneering work in electricity, invented the voltaic battery in 1800. The voltaic pile was a forerunner of the electric battery. The electrical unit known as the volt was named in his honor.