A tube is shown to be completely empty and a glass is dropped through the tube to reinforce the fact. Water or other liquid is then poured into the tube but the liquid does not pour out the bottom! A magic wand can be passed through the tube, and the wand can also be used to push a silk hank through the tube. The liquid has apparently vanished! The glass is then pushed back up through the tube and when it exits out the top, the glass is completely full of the missing liquid!  $40  009RUMLIQSUSTUBE