Features

With traditional razors, the cutting edge of a blade moves in the direction of the cut. A new shaving device, however, includes one or more blades that perform a vibrating motion perpendicular to the direction of the cut, and parallel to the blade’s edge; the hairs are cut by sawing, rather than cutting.

Parker Hannifin has created design concepts for valves that can be used in MRI-compatible ventilators. The valves, built to work with a variety of medical fluids and gases, are unaffected by strong magnetic fields and, in turn, do not create any magnetic fields of their own. In addition, the valves can be...

Researchers at the University of California, Santa Barbara, have developed a novel device structure that reduces light absorption inside an LED, enables uniform light emission from the active layer, and reduces light reflections occurring repeatedly inside the LED, thus increasing the overall efficiency.