A wheel spinning in opposite direction

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Offline migo

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A wheel spinning in opposite direction
« on: 28/03/2011 21:37:53 »
Hi,

I understand why in the movies we sometimes see a wheel spinning in the opposite direction. What surprises me is that I'm getting the same effect with a naked eye.

Does it mean that the brain processes the visual information in discrete "frames"?

Alternative explanation that came to my mind - maybe the light source is not constant but actually the light twinkles at certain rate.

Thanks,
Michael

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Offline Geezer

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A wheel spinning in opposite direction
« Reply #1 on: 28/03/2011 21:58:31 »
I think you are right about it being caused by the light source. Flourescent tubes can produce quite a lot of flicker.
There ain'ta no sanity clause, and there ain'ta no centrifugal force Šther.