Medusa, 2008, by Mikko Paakkanen (Finland). Inspired by the movement of jellyfish, Medusa is made of fiber optic rods lit by high-intensity LEDs. A microprocessor-controlled motor moves the rods, so the light fixture expands and contracts in a hypnotic motion. The movement can be stopped at any stage, so the light can be frozen in different shapes. Photo by Paola Pieroni