In the future we envision artificial muscle driving our cybernetic soldiers and helping to repair our fleshier ones. In the present, though, it seems the tech is starting a little smaller, at least it is in the case of Artificial Muscle (the company), which has developed tech enabling a silicon film to expand or contract when a voltage is applied to it. It's currently being used to create small pumps and linear actuators and the like, and is now is being pitched as a solution for feedback in touch-sensitive devices. T
