'Nanodragster' races toward the future of molecular machines

'Nanodragster' races toward the future of molecular machines: "Scientists in Texas are reporting the development of a 'nanodragster' that may speed the course toward development of a new generation of futuristic molecular machines. The vehicle -- only 1/50,000th the width of a human hair -- resembles a hot-rod in shape and can outperform previous nano-sized vehicles."