The authorship of intensive use of diffraction gratings to take UFO pictures does not go to Claude Poher (1976) but to the U.S. Air Force in 1953…! Read the excerpt “How to Expose Flying Saucers” from the Popular Science review issued in January 1953.
Based on our experience on the design of the first version of lens cap for mobile phones, we have sought to remove
Order your diffraction grating slide and go to the hunt of UFO’s spectrums. Several methods are available to get yours at low cost. The diffraction grating remains as free.
Sorry, this entry is only available in Français.
Sorry, this entry is only available in Français.
