A ballerina from the English National Ballet dances next to a two-meter-high robot snake, which looks every bit as graceful as she does. Maybe the future of robotics isn't dancing little humanoids or cute puppies, but a nice sinuous snake that can slither around your house cleaning your floors and picking up after you. They could be standard equipment in every home within a few years. Click through for more cool robot images from the Streetwise Robots event at the London Science Museum's Dana Centre.