File:Speed of light calculation using Foucault's rotating mirror.png

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English: Left panel: Mirror R is stationary. Lens L (not shown) forms an image of slit S on spherical mirror M. The reflected image of the slit reforms at the original position of slit S regardless of how R may be tilted. Right panel: Mirror R is rotating rapidly. The reflected light from mirror M bounces from mirror R that has advanced an angle θ during the transit of the light. The telescope detects the reflected image of the slit at angle 2θ relative to the position of slit S.
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Author Stigmatella aurantiaca

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Date/TimeThumbnailDimensionsUserComment
current11:51, 2 August 2015Thumbnail for version as of 11:51, 2 August 2015996 × 560 (64 KB)Stigmatella aurantiaca (talk | contribs)Added arrow showing direction of rotation
02:55, 2 August 2015Thumbnail for version as of 02:55, 2 August 2015996 × 560 (70 KB)Stigmatella aurantiaca (talk | contribs)User created page with UploadWizard

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