Kudos to Bristol University for catching our attention, and doing so in the name of promoting education. Professor of Ultrasonics Bruce Drinkwater is evoking a rather iconic name to better explain how cool science / engineering can be. Though already used in the manufacturing and medical fields -- don't yawn and look away just yet -- Drinkwater expresses some confidence that the future of this technology could very well usher in a pocketable device similar to the sonic screwdriver fancied by a certain former resident of Gallifrey. You know, that do-it-all device that can repair electronic equipment, burn and cut items, fuse metals, scan for information, and render v