/ kalebeul / 2008 / 07 / 04 / video of interesting aural and visual stroboscopic effects on the renfe train from barcelona to vich /
A malfunction of the public address system produces a rather pleasing strobe:
At the end of this clip, a crude example of the wagon wheel effect, caused by what the brain, fooled by the camera, takes to be a succession of evenly spaced, identical Quercus ilex:
More educational train journeys here.
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4 July 2008 at 3:23 PM
(No 2 worked for me at home, but it may not online)
4 July 2008 at 3:24 PM
(You need to let your eyes go a bit)