Methyl salicylate, or oil of wintergreen, is fluorescent, meaning it absorbs light of a shorter wavelength and then emits it as light of a longer wavelength. This brighter light is produced by the wintergreen flavoring. But when you bite into a Wint-O-Green Life Saver, a much greater amount of visible light can be seen. The sparks fly when the charges reconnect. This is why all hard, sugary candies will produce a faint glow when cracked. troboluminescence comes from quickly tearing glow-in-the-dark Silly Putty. When such crystals fracture, electric charges in the molecules separate, and negative electrons are split off from positive protons. An explanation with pictures of why wintogreen lifesavers flash when crushed. In a dark room you can see the sparks inside. How does it work? Sugar crystals are naturally asymmetrical, so they tend to break apart in a lopsided way. Fun Stuff To Do With Your Kids 25 subscribers Wintergreen, or as they call them 'Wint-O-Green', Lifesavers glow or spark blue when you crush them. The technical term for the effect is "triboluminescence," from a Greek word meaning "to rub" and a Latin word meaning "light." Any sugary hard candy can give off triboluminescent sparks, but the light from Wint O Green Life Savers is easiest to see. And as with touching a metal doorknob in a (dry) dark room, we see a blue spark flash. Instead, friction produced in the materials (such as adhesive tape, or Wint O Green Life Savers) triggers a burst of static electricity. But the light isn't coming from a fiery flame. Call it the Electric Lifesaver Effect: As with rubbing two sticks together to create a flame, light can be made when certain materials are rubbed together, ripped apart, scratched or smashed to bits.
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