Slide words: Era of Observation: Nanoscale and Below

Slide image: Artist's conception of a molecular robot capable of many steps and of making decisions; simulation of a carbon nanotube (inset)

Image credit: Zina Deretsky, National Science Foundation; Vin Crespi, Pennsylvania State Physics. distributed under the Creative Commons license http://creativecommons.org/licenses/by-sa/2.0/ (inset)