On 2/27/2011 3:14 PM, Oren wrote:
On Sun, 27 Feb 2011 02:08:03 -0600, dilbert firestorm
wrote:

there's a website that showed you how to remove zinc from a copper
plated penny.

end result, all the zinc was gone and you got a very thin piece of
copper penny left over.

don't remember which acid they used.

It might have been an episode of Modern Marvels: Acid.

IIRC they demonstrated this and mentioned just how thin the cooper was
over the zinc.
I didn't see that one. must've missed that episode.

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