Five MIT students: Dave Smith, Rajeev Dhiman, Adam Paxson, Brian Solomon, and Chris Love, along with their professor, Kripa Varanasi, have made a major breakthrough.  Last spring, they invented LiquiGlide, an edible, plant-based coating that can be placed on any surface, from glass to ceramics. Liquid-based products that encounter the surfaces will slip right off, whether it's ketchup in a bottle or rain on a jacket.