Feats and Heroes finds unconventional and surprising solutions for difficult problems in technology and reality. Some work, some don't. Those that work are usually available for licensing. Feats and Heroes is fueled by tenacious curiosity and staffed by the love children of Angus MacGuyver and Ada Lovelace.
A preferred embodiment of a lemon battery 100 comprises a lemon 102, a galvanized nail 104, and a copper coin 106. The galvanized nail 104 and the copper coin 106 are inserted into the lemon 102. Two conductive wires 108 are attached to two alligator clamps 110. The alligator clamps 110, in turn, are attached to said galvanized nail 104 and to said copper coin 106, respectively.