tag:blogger.com,1999:blog-8304928500646903522.post8628111990025589669..comments2024-03-28T18:32:05.933-04:00Comments on bensozia: The Double Helix StaircaseJohnhttp://www.blogger.com/profile/01037215533094998996noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-8304928500646903522.post-56851789483348410332018-11-30T07:15:51.146-05:002018-11-30T07:15:51.146-05:00Of course it's copper, so it will tarnish; did...<i>Of course it's copper, so it will tarnish; did they maybe also design a robotic system to clean the thing?</i><br /><br />I would be <i>very</i> surprised if the copper wasn't sealed using a clear varnish of some kind, which will prevent tarnishing.G. Verlorennoreply@blogger.com