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L'étude scientifique du phénomène Ovni
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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.

Télécharger (PDF, 458KB)


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Delivering diffraction gratings to Ukraine

Fifty diffraction gratings are about to be delivered to Ukraine. A warm thank to the private groups from Eastern Europe who realized the importance of these free, easy to use small devices.