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A comment on “You don't have a voltmeter. Do you have a potato?”. Parent comment

Re:“You don't have a voltmeter. Do you have a potato?” by aequitas on Friday November 25, 2022 @03:05AM (#33740288)
You don't even need the bottle, just make sure the water is in the correct phase: https://www.youtube.com/watch?v=thbSSuo1Z00
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