Preserving Statues and Infrastructure
Sandia National LaboratoriesNew York's Metropolitan Museum of Art, which collects statuary, has teamed with scientists from Sandia National Laboratories, concerned with preserving the nation's security, to produce an inorganic coating that increases by a factor of ten the longevity of powdered calcite -- the basic component of limestone -- when calcite is submerged in a solution similar to mildly acid rain.