Mythbusters, Coins, and Cola

Tonight on the Discovery channel "Mythbusters" they tackled the myth of whether cola would clean coins. In this case, a lincoln penny. They took two coins, one was dropped in phosphoric acid, the other in cola, and left overnight unaggitated. The phosphoric acid didn't clean the first coin very well at all. However, the cola cleaned the lincoln penny fairly well. In fact, you can see where an air-bubble rested against the penny and that part wasn't cleaned. I couldnt' get a very good look at the coin, but it had some luster. I thought it was very interesting.
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(people from the Midwest say pop, not soda)
Big Mike <><
Let your roots grow down into him and draw up nourishment from him, so you will grow in faith, strong and vigorous in the truth you were taught. Let your lives overflow with thanksgiving for all that he has done. --Colossians 2:7