And very easy to do!
Yes, it's REAL WATER!
Drop the clear plastic glass through the tube to prove that it's empty.
Next, pour some water into the tube.The water stays suspended inside the tube- it doesn't come out the bottom, as you would expect!
Push the clear plastic glass through the tube again- the glass is now filled with the water!
This is a great trick for presenting in front of a group.
It is not meant to perform if your spectators are positioned right next to you.
Do this one in a classroom or in front of an audience.
This effect uses real liquid, so be aware that there might be some spilling (as you see in the demo).