The Pulfrich Effect: Animated View of Targets

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This shows how the observer sees the targets during the experiment. The LOWER target is controlled by the observer, who moves it toward or away until it matches the apparent distance of the upper, moving target.

Animated target view

See the page of animated explanations at this web site for more detail.

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The Pulfrich Effect, SIU-C. Last updated 2000-07-23