On Thu, 03 Dec 2009 01:30:33 +0000, Graham. wrote:
To bring this on-topic for a DIY group -
http://www.instructables.com/id/Make..._a_AA_battery/

Heh - doing the opposite would be more impressive (although I do have
a graphing calculator somewhere with some trailing wires and a 9V battery
dangling from it, because it'd eat through its 2032 3V cells and I never
had spares of those lying around when I needed them)