Synthetic Chemistry

synthetic chemists are just alivating over this idea, and they're working very hard to try to come up with ways to knot on the molecular level. So for each kind of knot that you can have, of which there are an unlimited number, but even for small crossing number, millions and millions, each one of those knots can now become a new substance. And so it's interesting, the navy actually funded a lot of research on this, and it really came about because they were very interested in coming up with new substances that they could coat their submarines with so as to avoid radar.