Diffraction grating caps : an idea from the US Army in 1953 Sorry, this entry is only available in Français.
Web serie “The minute of UFO-Science” : The diffraction gratings Sorry, this entry is only available in Français.
How to make a diffraction grating kit for a mobile phone imaging device This document explains, step by step, how to make a small equipment that will adapt a diffraction grating on the objective of your mobile phone.
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