Non Reciprocal Gears

Non-Reciprocal Gears. Non-Reciprocal Gears is a set of gears with ratchets. Its mechanism is related to the Non-Transitive Gears. The toy can be presented as a parlor trick. You challenge a friend to choose a gear and turn it. If their gear turns the fastest, they win. If your gear turns faster, then you win. The trick is that if you turn a gear clockwise, what most people do, then it will turn slower than the other gear.- Non-Reciprocal Gears.