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tofu
2007-Apr-08, 11:20 PM
http://www.geekarmy.com/Science/Cool-Battery-Demonstration.html

I haven't seen this before. I guess that the running water is picking up electrons from the cans?

crosscountry
2007-Apr-08, 11:42 PM
yea. water carries very little charge, but sometimes it does carry. That charge moves the charge on the cans.

I've actually watched a lot of his lectures. He's a great teacher.

01101001
2007-Apr-08, 11:50 PM
Same video on YouTube (http://www.youtube.com/watch?v=F5PvIPgJGx0)