What’s this? Kristine Spence of facilities management at the University of Saskatchewan is feeding used fluorescent light bulbs into the “bulb eater.” The machine instantly crushes the glass tube and reportedly sucks up 99.9 percent of the mercury and phosphorous inside, which is then re-used for the production of new bulbs. According to Environment Canada, the mercury in one tube can contaminate 30,000 litres of water. The glass is recycled and used in the production of highway paint, and the metal is melted down and re-used as well. The university is currently retrofitting the campus with energy-efficient lights and bought the machine to dispose of the old fluorescent tubes.