Robots are one of the most popular visions of the future, evident in many science fiction novels, from Isaac Asimov’s “I Robot” to Douglas Adam’s “Hitchhiker’s Guide to the Galaxy.” Often humankind fears that robotics technology could get so advanced that these cybernetic organisms will begin thinking and acting for themselves, with little regard for human hierarchy. However, the robots we use today are quite harmless and perform a number of useful functions.

Scientists are looking at how robots may function medically to help people live longer, more productive lives. For instance, researchers found that test monkeys can move a robotic hand simply by using their minds. That hand can wave, peel a banana and pick up items, just by reading the brain’s electrical output.

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