Nanotechnology thrives in the realm of the virtual. Throughout its history, the field has been shaped by futuristic visions of technological revolution, hyperbolic promises of scientific convergence at the molecular scale, and science fiction stories of the world rebuilt atom by atom. Even today, amid the welter of innovative nanomaterials that increasingly appear in everyday consumer products—the nanoparticles enhancing our sunscreens, the carbon nanotubes strengthening our tennis rackets, the antimicrobial nano-silver lining our socks, the nanofilms protecting our wrinkle-free trousers—the public (...) rhetoric of nanotechnology constantly reminds us that such precision-engineered materials merely represent a trace or a premonition of the amazing future still to come... (shrink)