Artificial Muscles That Can Heal Themselves (and Power Up Your Gadgets)

Unbelievably enough, researchers in California have developed an artificial muscle that can expand more than 200% when electricity is applied to it. By using carbon nanotubes, they have added a level of durability that can not be matched by current artificial muscle materials. If an area of the nanotube fails, the… » 3/20/08 8:15pm 3/20/08 8:15pm