(From left) Ph.D. candidate Mohammad Shamsodini Lori and Associate Professor Jiangtao Cheng set up a game of Go—the same game Cheng played against an artificial intelligence opponent that inspired him to develop algorithms to solve spray-cooling problems. Credit: Jiangtao Cheng. It's a simple law of physics: When electricity or fuel powers a machine, the machine gets hotter. Finding new ways to cool machines quickly and controllably can mean the difference