- #1
ozmac
- 25
- 0
Hey guys,
So I had what I thought was a cool simple idea to show the effects of the apparent centrifical force.
I glued the mouth of a balloon onto the end of a 1.5m length of a 10mm flexible tube.
The idea in my head was that by spinning it around the inertial forces would result in effective increase in weight of the air in the tube, and therefore pressure. I figured this would essentially compress the air at the end of the tube and fill up the balloon. A vacuum would be present at the end of the tube I am holding, and suck more air in.
I was quite certain I would get flow into the balloon, as when spinning the balloon at 120rpm (2 revs a second) at a radius of 1.5m, this results in a centrifugal g force of approx 24g's, which I believe would give you a pressure of of 24 atmospheres (2.4MPa).
But sadly, the balloon did not inflate at all, and I experienced no vacuum when i put my finger over the end of the tube. So I felt quite silly haha.
Can anyone explain where my logic is failing me?
Cheers
So I had what I thought was a cool simple idea to show the effects of the apparent centrifical force.
I glued the mouth of a balloon onto the end of a 1.5m length of a 10mm flexible tube.
The idea in my head was that by spinning it around the inertial forces would result in effective increase in weight of the air in the tube, and therefore pressure. I figured this would essentially compress the air at the end of the tube and fill up the balloon. A vacuum would be present at the end of the tube I am holding, and suck more air in.
I was quite certain I would get flow into the balloon, as when spinning the balloon at 120rpm (2 revs a second) at a radius of 1.5m, this results in a centrifugal g force of approx 24g's, which I believe would give you a pressure of of 24 atmospheres (2.4MPa).
But sadly, the balloon did not inflate at all, and I experienced no vacuum when i put my finger over the end of the tube. So I felt quite silly haha.
Can anyone explain where my logic is failing me?
Cheers