In Googling for an explanation as to why high speed fan blades appear to occasionally spin in the reverse direction, I managed to find these. Trippy. I've always been amazed by artists. I especially like the sidewalk 3D stuff. I seen that here once and WHOA...felt like I was falling in the sewers it was awesome!!!
http://www.feedshow.com/show_items-feed ... 217ddb493b
p.s-As for my own search I assume it's because the tip of the prop is moving faster than the center? Anyone know of reference which explains this phenomena?
Optical illusions
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alex.barylski
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LMAO @ http://bp1.blogger.com/_cxmptAPYR-s/RpE ... 74c7_o.jpg
Smoking a cigarette, pumping gas.. I love it.
Smoking a cigarette, pumping gas.. I love it.
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alex.barylski
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- Chris Corbyn
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Re: Optical illusions
It's to do with the rate at which your eyes refresh what you see (read, the rate at which your brain interprets the image). The fan spins, and as it does so each fan blade moves. If your eyes next see the image in X milliseconds, the blades may be slightly offset which makes them appear to have moved backwards.Hockey wrote:As for my own search I assume it's because the tip of the prop is moving faster than the center? Anyone know of reference which explains this phenomena?
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