JAMF, It actually means exactly that. The Arduino was originally developed in Ivrea, Italy (see
http://en.wikipedia.org/wiki/Arduino for more info).
Gene, if the mirror can't handle a completely blocked valve without popping or stretching out of shape, you could always put in a sacrificial window made out of an offcut, for example on one of the hidden sides of the plenum. Just rig a thumbtack or some other cutting device behind it with a way to fine tune the distance before a rupture is induced, and this ought to be enough to keep the main mirror safe.