On Sun, 27 Feb 2011 18:02:54 -0800 (PST), JIMMIE
wrote:

On Feb 27, 4:14*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.

Spend a night at the Waldorf Astoria. One of the services they offer
there is to clean and polish your coins. Paper money is cleaned and
pressed. All included in the cost of the room.

Jimmie

But do they have good Caesar salad?