Robot kits come in all different shapes and sizes; some are remote controlled, others are controlled by a computer program. But what really goes into making a robot? In every robot, you’ll notice three consistent things. The first is the ability to move. This movement is generated most commonly by electric motors, but it could also be hydraulics (like a tractor backhoe), pneumatic (like the air gun Nascar pit crew use to pull the wheel off a car) or even muscle wires where yo