The air in the bottle creates a noise.
you increase the pressure
When we blow the aire increases in that are and the air pressure decreases forcing the thinks to move
it will exspand. like my peni does.
Because it sends vibrations through the bottle to make a sound
bottle whistle
the gathers in the bottle and when its full it must come out and when both directions hit that makes the wliziling sound
You shoot it
Put the balloon in the bottle with the blowing up part out and blow it up in the bottle.
what happens if you squeeze a bottle with a balloon
Really?
throw a stone to it :)
if you get a open bottle as the pax what happens