And so, to speed up the process, we can basically look at diagram E. And in diagram E, what we do is we essentially pour a salt solution into our mixture. And what the salt solution does is, so the salt solution, for example, can contain sodium chloride ions. And what happens is the sodium and the chloride ions dissociate in our solution, and those positively charged sodium ions will begin to interact with these negatively charged beads. And so what that will do is that will disrupt those electric interactions between protein One and these negatively charged beads. And so by pouring our solid solution, we're breaking the electric interactions between the protein and the negatively charged beads. And so now gravity can basically overcome that electric force, and this protein will begin to move down and eventually it will elude and we can collect it in another test tube.