Grazing the Nanograss - Adaptable substance may cool computers and put a zoom lens in your cell phone. Future Watch by Gary H. Anthes OCTOBER 11, 2004 (COMPUTERWORLD) - A drop of water glides across the flat surface like quicksilver, moving effortlessly from place to place as the surface is tilted. It's hard to believe that the little bead is water, for it doesn't wet the surface as it races around, seemingly without friction. The little drop in this impromptu laboratory demonstration isn't on an ordinary surface. It's riding on "nanograss," a bed of upright silicon posts a thousand times...