1. ## Top Experiment.

If you spin a top and throw confetti on it, does the confetti stick to the top as long as it is spinning?

What do you think would happen if this experiment was conducted in zero gravity?

topspin.png

2. ## Re: Top Experiment.

Depends on whether the confetti is thin enough to stay in the boundry layer of air rotating at the surface of the top and on the coefficient of friction between top and confetti reletive to the centrifugal force and the boundry layer pressure coefficient. In zero g the confetti would have a harder time penetrating the boundry layer without gravity to help. While the boundry layer would pull on it the centrifugal force to friction ratio is higher in the air away from the surface than with confetti in direct contact with the solid surface. It would be flung away from the top before it contacts. Unless it approaches near the center of rotation.

3. ## Re: Top Experiment.

Originally Posted by astrotech
Depends on whether the confetti is thin enough to stay in the boundry layer of air rotating at the surface of the top and on the coefficient of friction between top and confetti reletive to the centrifugal force and the boundry layer pressure coefficient. In zero g the confetti would have a harder time penetrating the boundry layer without gravity to help. While the boundry layer would pull on it the centrifugal force to friction ratio is higher in the air away from the surface than with confetti in direct contact with the solid surface. It would be flung away from the top before it contacts. Unless it approaches near the center of rotation.

Centrifugal force? I don't think there is any. Did you try the experiment?

4. ## Re: Top Experiment.

Originally Posted by john_gabriel
Centrifugal force? I don't think there is any.
You Wouldn't.

5. ## Re: Top Experiment.

Originally Posted by astrotech
You Wouldn't.
There is no centrifugal force. I am more interested in whether or not you tried the experiment. Your theories do not interest me.

6. ## Re: Top Experiment.

Originally Posted by john_gabriel
I am more interested in whether or not you tried the experiment. Your theories do not interest me.
That was not the question of the op. My statements are facts. I have conducted many experiments, and variations regarding the forces I mentioned. Anyone can experiment with boundry layers simply with a leaf blower or even blowing with the lips. Not to mention I am a pilot and hang my life on my understanding. Also I was a machinist so a lot of centrifugal force experience too. I haven't done any experiments in space you moron. But you have no experience of anything anywhere living as you do in your mother's basement all these decades. But if you left your basement a tenth as much as normal people your life has directly depended on my understanding what I do.

7. ## Re: Top Experiment.

Originally Posted by astrotech
That was not the question of the op. My statements are facts. I have conducted many experiments, and variations regarding the forces I mentioned. Anyone can experiment with boundry layers simply with a leaf blower or even blowing with the lips. Not to mention I am a pilot and hang my life on my understanding. Also I was a machinist so a lot of centrifugal force experience too. I haven't done any experiments in space you moron. But you have no experience of anything anywhere living as you do in your mother's basement all these decades. But if you left your basement a tenth as much as normal people your life has directly depended on my understanding what I do.
The OP clearly states: If you spin a top and throw confetti on it, does the confetti stick to the top as long as it is spinning?

It does not ask for your opinion, you imbecile. It asks for fact that can be easily verified by doing the experiment. Your opinions are worthless shit.

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