Pierre Gougelman had the first glass eye factory in the United States in 1851. At first, the public thought artificial eyes actually gave their wearers new sight. If only glass eyes worked that way!

Laser work and similar operations create intense concentrations of heat, ultraviolet, infrared, and reflected light radiation. A laser beam, of sufficient power, can produce intensities greater than ...

The Laser Safety Program provides information on laser hazards and laser-related policies, procedures and recommendations for the safe use of lasers. Most of this information is based on the American ...