AFTER THE TRANSISTOR, A leap into the microcosm. “Dr. Ross, an I.B.M. researcher, is growing a crop of mushroom-shaped silicon nanowires that may one day become a basic building block for a new kind of electronics. Nanowires are just one example, although one of the most promising, of a transformation now taking place in the material sciences as researchers push to create the next generation of switching devices smaller, faster and more powerful than today‚Äôs transistors.” Shouldn’t that be the “nanocosm”?