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<p>[QUOTE=&quot;Evan8, post: 2907846, member: 74343&quot;]I like how one of these threads pop up every few months. Same players involved over the same conversation. Im guessing this one will go 24 pages<img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie2" alt=";)" unselectable="on" unselectable="on" />.</p><p><br /></p><p><br /></p><p>Dont get me wrong though. I thnk these threads are a very interesting read. [USER=112]@GDJMSP[/USER] has definitely made me think about old red cents and how they have stayed red, supposedly.</p><p><br /></p><p>One question I have though. Could extreme temperatures have anything to do with keeping the original red color of copper? For instance, copper piping in a home. If i remember correctly, copper pipe that had hot water running through it kept it&#039;s original red color much longer than the copper piping that had cold water running through it. The cold water piping seemed to turn brown very quickly where as the hot water pipe maintained a red color for quite sometime. Then again copper piping might be a different grade of copper than that of cents. Might pose as a decent experiment.[/QUOTE]</p><p><br /></p>

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