An example of an object which feeds from an unusual resource is the Potato clock. Clocks which run on potatoes may seem like a bizarre example of what is always available in ‘Innovations’ magazine, but this type of energy supply could be quite useful for charging a parasite. The potato provides enough energy to power quite a small circuit and usually charges something that runs on little energy.
By considering the objects which could successfully run on this type of power gives the opportunity for designing objects which could partially feed from them. It begs the question ‘How many potatoes to power a tv?
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