5E40.25 Fruit or Vegetable Powered Clock

Lemon, Apple, or Potato battery operates digital clock. Operation requires two types of metal for electrodes. Metals plus chemicals form Voltaic cell.

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Setup Requirements: Assembled as needed. Voltmeter can be added. 1 day advance notice needed or bring your own vegatable or fruit. Requires 2 apples or other fruit or vegatable. 

 

Equations: None

 

Safety Issues: None