Microscopic cogs and miniature turbines are fairly easy to make out of silicon, but getting them to move is another matter. Ordinary oil won’t work at that scale, and solid coatings rub off in minutes. But now there might be a solution. Check out the story in Nature News.

Microscopic cogs and miniature turbines are fairly easy to make out of silicon, but getting them to move is another matter. Ordinary oil won’t work at that scale, and solid coatings rub off in minutes. But now there might be a solution. Check out the story in Nature News.