And the idea of this technique is you take er a erm a chamber which is split into two compartments by a teflon partition,shown here, you fill the two compartments with an aqueous solution,okay , and you can then paint across a small hole in this Teflon partition a solution of phospholipids in a solvent, for example endecaine and when these phospholipids are painted across the er solv the er the small hole in the Teflon partition the solvent collects, here I've magnified it, collects around er the the edges of the hole, and leaves you with a what turns out to be a simple  bilayer, a phospholipid bilayer.