I enjoy the odd game of pool every now and then, and if you are the same, then you have undoubtedly at least once given thought as to how the white cue ball remains separated from the colour balls when it drops down a pocket.
As it turns out, the answer is quite a simple trick. Magnets.
Essentially the cue ball contains metal, which then thanks to the pull of a large magnet along the unseen ball tracks beneath the table, is thrown down its own special track each and every time it rumbles down a table pocket.
The Science Channel details this clever trick in their wonderfully animated explanation video:
Related Link: Science Channel