First nanobot takes baby steps

A couple of US chemists have designed the world's first two-footed microscopic robot which can walk around its lab dish (aw, cute). The robot's legs, made from DNA fragments, are only 10-billionths of a meter long (10 nanometers) and can walk along by way of attaching and detaching itself to a track made out of DNA. Walking nanorobots will be really useful for nanoscale manufacturing so the next step is to get the nanowalker to carry an atom so that the little guys can actually assemble other nanomachines.