'Time Crystals' Could Upend Physicists' Theory of Time | Wired Science | Wired.com

The idea came to Wilczek while he was preparing a class lecture in 2010. “I was thinking about the classification of crystals, and then it just occurred to me that it’s natural to think about space and time together,” he said. “So if you think about crystals in space, it’s very natural also to think about the classification of crystalline behavior in time.”

via www.wired.com

Sometimes I get ideas while preparing lectures but they usually don't involve crystals, time or anything that profound. Often they involve something fried, roasted or pickled. --ts