Several years ago, mechanical engineering student Brian Kaplun ’06 was paralyzed from the waist down after a mountain-biking accident. In the ensuing years, Professor Joachim Grenestedt suggested that Brian begin skiing on a monoski, a bucket seat perched in a metal frame above a single ski. Grenestedt, along with technician Bill Maroun, designed a new type of monoski, and, according to Kaplun, it is a major improvement over other models on the market. Judging from the new online video of Brian carving it up in Colorado, he’s right. The video is provided by DynAccess Ltd., a Bethlehem-based start-up firm specializing in advanced outdoor equipment for physically disabled individuals and athletes.