Suction Cups: How?

[jrgrim12]

Doesn't accelerating air over a hole creat a vacuum. That's how air planes fly. They accelerate air over the top of the wing which lowers the air pressure and creates lift. I know that if you take an air gun and blow arcoss the top of tub you can suck water up thru it so it should work with air as well. You can try it by taking a small piece of tubing and plug one end with your finger and the other end use an air gun to blow over the top NOT inside and see what happens