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Soda Can Leyden Jar

Step 3More assembly

More assembly
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Break off the soda can tab; discard. Cut a small rectangle of foil tape and cover the opening in the can as smoothly as possible. Insert the can top side down into the cut-off peroxide bottle. It should be an exact fit. If it proves to be too tight, warm the peroxide bottle with a hair dryer until it is soft enough to take the can. Push slowly and firmly. There's air inside the bottle, and you need to let it escape before the can will fit flush inside the peroxide bottle.

Cut off a piece of the two inch wide foil tape.

[People have asked, what kind of tape? What brand? I use Duck Brand Aluminum Foil Tape, made by Henkel USA.]

Apply it to the peroxide bottle just above the bottom bulge. Make sure it is even and smooth. You can polish out any wrinkles with the bowl of a plastic spoon (don't use a metal spoon, you'll tear the foil). Cut a 1/2 inch wide strip of foil tape about six inches long. Apply this across the center of the bottom of the peroxide jar. Smooth the ends evenly against the side foil. It is very important the bottom strip makes good contact with the sides. The bottom strip is your ground connection.
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Author:Mr. Apol