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I'll show you something neat you can do with some easy to obtain acid.
You'll need the following:- Muriatic acid (hydrochloric acid) You can find this at your local hardware or paint store.- Small glass- Some shiny pennies Only pennies from 1982 ...
File away some of the copper on the side of the penny you don't want to keep.In doing so, you'll expose the zinc inside.
Put the penny in the glass with the exposed zinc facing up.Next, pour in just enough acid to cover the top of the penny.Leave it for several hours ...
After the acid has finished reacting with the zinc, you will be left with a thin copper foil and a copper shell of a penny only one thousandth ...
Now carefully clean the inside of the shell with a cotton swab. Be sure to place it on a flat surface so you don't bend it.Now you're done!You ...
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