RALEIGH, North Carolina, June 7 (TNSjou) -- North Carolina State University issued the following news release: * * * Set It and Forget It Autonomous Structures Can Be Programmed to Jump Days in Advance * Researchers have created dynamic structures that leap into the air on a predetermined schedule without intervention from computers or external stimuli. Precisely when these "metashells" jump, and how high they jump, is engineered into the physical structure of the materials. "There are str  more