wind powered moving tubes

Although this might be an old trick its still a good one, Air blown into a tube at high volumes causes the pipe to shoot straight up, the end of the pipe is open and as the tube reaches its full length the air rushes out of the hole in the end. The result is that the pressure drops and the tube collapses, once it has fallen however the pipe bends , the hole is blocked and pressure builds up again, causing the tube to stand up again. You end up with an inflatable that dances continuously in a random way, a great way to get some dynamic movement into your event.

The effect that I really like with these inflatable's ids when they get very large, over 50m, the movement becomes very gracefully and the shear scale in very impressive especially if it hits the floor nearby

In the video we are heaving some fun with a tube of 65m in length, click on the link below to see the effect.(quicktime needed)