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Make a Photon Flower That Lights Up When You Water It with Lemon Juice
Cool project - if you wait a little bit after adding the lemon juice the voltage will climb. Mine peaked at 2.36V with six 6d finishing nails.
Way cool - you can see the voltage climb with a meter. Mine peaked at 2.68V with six 6d finishing nails. I stripped the coating off CAT5 solid core wire and used a multi-color 3V LED.
can we use iron nails
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