The above contraption, aside from looking really uncomfortable, is the latest advance in electroactive polymer artificial muscle technology. Using soft acrylic or silicon layered with carbon grease, EPAMs contract like muscle tissue when current is applied -- making 'em just the ticket for use in UC Davis's Eyelid Sling. Billed as the "first-wave use of artificial muscle in any biological system," the device is currently letting cadavers (and, eventually paralyzed humans) blink -- an