I mix them together, add a little bit of salt water, and then add this long strand I was telling you about, that I've stolen from a virus. And then what happens is, you heat this whole thing up to about boiling. You cool it down to room temperature, and as you do, what happens is those short strands, they do the following thing: each one of them binds that long strand in one place, and then has a second half that binds that long strand in a distant place, and brings those two parts of the long strand close together so that they stick together.