Engineers at the University of Michigan may have figured out a new way of examining covered artworks: T-rays. T-rays, or terahertz radiation, are capable of imaging art much in the way that X-rays can image bone, but without any damage to layers of paint or plaster that might cover up older works. They’re also superior to current methods in their ability to register graphite and sanguine, important materials that current imaging techniques overlook. ScienceDaily has the full story here.
