"The problem was that the complex structure of the membrane as a whole—which looks like nanoscale mountain ranges when magnified—was blocking our view of the void spaces. Because we could not see them, we couldn't fully understand how they affected filtration properties. We knew that if we could find a way to see them, we could then figure out how they work and ultimately improve filter membrane performance."
Pincho says... And that is how gravity works with even smaller holes. The problem is that you can't see them so why was The Cavendish Experiment a success?