English: Arago spot experiment. A point source illuminates a circular object, casting a shadow on a screen. At the shadow's center a bright spot appears due to diffraction, contradicting the prediction of geometric optics
Date
16 June 2011 (original upload date)
Source
Created using Google Sketchup 8.0
Author
Thomas Reisinger
Other versions
Magyar
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Licensing
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Original upload log
The original description page was here. All following user names refer to en.wikipedia.