Anyway ... a long long time ago, my father told me a story how when he was in college, they used to heat water just by putting putting 2 inert electrodes (graphite) in tap water and it would instantly (in a few seconds) boil. He said they used to make coffee and pasta that way :) Now that I'm in college (and have been attending a Physical Chemistry class recently) I've been thinking about the mechanics of such heating method. Anyway, I figure that due to a fast change in polarity (50 times per second) the water heats up due to molecular friction of solvatation shell (I don't know what's the term in English) as it passes through non-ionized water. Am I even going in the right direction? :) Does it even happen? I'm too much of a pussy to play with 220V since I got electrocuted.