Playing with very tiny toys at Rice University:
"Using the parts inside a single molecule, scientists have constructed the world's smallest car. It has a chassis, axles and a pivoting suspension. The wheels are buckyballs, spheres of pure carbon containing 60 atoms apiece. . .
"Eventually the researchers want to build tiny trucks that could carry atoms and molecules around in miniature factories."
Did you catch that? They're aiming to design nanoscale machines to "carry atoms and molecules around in miniature factories."