Yahoo News (where do they reut around for this stuff?) reports that authorities in Italy have (can I say "unveiled" in this family pub?) announced a plan to build a "wall of air" around Michelangelo's David to protect it from such predatory elements as motes.
I may have some useful information for them. My middle name is David and I have been using the wall-of-hot-air-in-self-defense system for many years; still, both Michael and Angelo would beset me in the schoolyard back in Brooklyn.
I had thought that David was carved from stone, but perhaps it is metal, in which case we have an aether-ore proposition. Anyway, good to see those motes are finally learning their place.