Sperm power could drive nano-scale robots

At last, sperm-powered robots!

The possibilities are endless for solving the energy crisis. To hell with those Arabs and their oil! Now Bill Maher alone can supply 71% of our energy needs!

And when you run out of fuel in your sperm-powered auto, there's no need to walk to a gas station. Refueling is as simple as it is fun! Well, unless you're female and have to siphon someone's tank.