> Given that my battery can supply so much energy, would it matter > what voltage it is? In practise, yes, because the conductors we use.have a resistance to current flow. Not so for superconductors http://en.wikipedia.org/wiki/Superconductivity All I knows is the electricity drips off the wires. It does, I seen it once and my cousin reckons he done seen it too. We'd bin drinking for a spell and ..... --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .