Potato Power Possible?
We've all seen these "two potato clocks" around: http://www.ebay.com/itm/Potato-Clock-Novel-Green-Science-Project-Experiment-Kit-kids-Lab-Home-School-Toy-/170880798356
A clock will run a year on a micro watch battery. No current required. I always wonder about scaling these things up to deliver more power. Make a battery. Slice a potato up and alternate thin sheet metal plates of what, copper and zinc or whatever it takes to output enough current to run a processor and/or motor.
The Potato Prop! The Spud Stamp! (Apple Arduino/ARM/AVR is a different category)
It would be great fun to see grown men racing potato (or whatever) powered cars or robots at Expo. How 'bout the The E-Lemon-ator!
Beat that, Maker Faire!
A clock will run a year on a micro watch battery. No current required. I always wonder about scaling these things up to deliver more power. Make a battery. Slice a potato up and alternate thin sheet metal plates of what, copper and zinc or whatever it takes to output enough current to run a processor and/or motor.
The Potato Prop! The Spud Stamp! (Apple Arduino/ARM/AVR is a different category)
It would be great fun to see grown men racing potato (or whatever) powered cars or robots at Expo. How 'bout the The E-Lemon-ator!
Beat that, Maker Faire!