How Does a Speedcube Work?

If you have ever watched someone solve a Rubik's Cube in a few seconds, you may have wondered how they can turn the cube so quickly without it falling apart. The answer isn't just skill. Modern speedcubes are specifically designed to make fast, smooth, and controlled turning possible. While they may look almost identical to the Rubik's Cube you probably played with as a child, the mechanism inside a modern speedcube is considerably more refined. So, how does a speedcube actually work? To unders