This experiment was performed for extra credit for my Fluid Mechanics class. It demonstrates the effects of a siphon and when you puncture a hole in the side. Will the water spill out the new hole? or will air be sucked into the hole? Watch and find out.
that is correct. Because of how Bernoulli's equation works, the flowing water has a slightly lower pressure than the atmosphere, therefore a small amount of air is sucked into the hole to re-establish equilibrium and the 'twisty' part is simply the stream of air flowing through the tube.
lkubice1 2 years ago