Electrical burn causes star-shaped cataracts in man's eyes
A 42-year-old electrician in California developed star-shaped cataracts in his eyes after a serious work-related accident caused electricity to run through his body, according to a new report of the case.See all stories on this topic
Video: Urine-Powered Robot to the Rescue
NerdWatch: Dr. Peter Walters is a researcher at the University of West England working on human-centered design. One of his most unusual creations is a robot that ingests garbage – human-waste – and converts it to energy. (NBCNews.com)See all stories on this topic