There's been various talk about using lemons and such to produce electricity (actually from the dissimilar metals).
There's just been a kids TV show on here, and they used a potato to work a clock - as you would expect, it worked fine, due to the miniscule current requirement.
They then wired 1700 potatoes and managed to run a small portable radio off of them - but it wasn't clear if they were just in parallel, or in series parallel to give an acceptable voltage.
There was a multimeter there, next to the radio, but it wasn't connected
There's just been a kids TV show on here, and they used a potato to work a clock - as you would expect, it worked fine, due to the miniscule current requirement.
They then wired 1700 potatoes and managed to run a small portable radio off of them - but it wasn't clear if they were just in parallel, or in series parallel to give an acceptable voltage.
There was a multimeter there, next to the radio, but it wasn't connected