T-ray camera sees through fog.... and clothes

"A project to develop a promising new astronomy imaging technique that can also denude a fully clothed human or see through thick fog has generated its first picture. A so-called T-ray image of a human hand, taken through a 1/2-inch (15 millimeter) pad of paper, is the first product of the new terahertz camera. The technology is poised to revolutionize imaging in astronomy, medicine and airport security, proponents say." See Space.com for more.