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Penny power!
I am sure osme of you have seen this type of battery before, but I think this is stil a cool way to power small electronic items. If the S ever hits the fan, this may be a valuable peice of knowledge to have!
http://www.instructables.com/id/How-...DIY-Batteries/
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Go figure...
Pennies cardboard and vinegar, I have.
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Wonder how many it would take to fire up a red dot reflex sight?
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Pretty cool, looks like a Mr Wizard experiment.........
Thanks for posting.
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Probably a couple. I've got one floating around in my mess some place, so if I find it I'll give it a try.
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Had not seen this before. I learned how to make a really small battery with a lemon, a penny, and a dime, in 8th grade science. Any two different metals in an acid solution technically constitute a battery. With a little fine steel wool you could spark a fire. Good post WT!
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that's really cool! now i am going to have to try that one day.
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I have some LEDS from the taillite of a car...the side makers. Really brite. Good apocalypse lites. I am going to make batteries for them tomorrow.
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