Sunday, December 28, 2014

optics - holographic projection in thin air?




from where I come from ,they taught us in high school that it is possible to project holograms in thin air simply by illuminating the hologram with the "correct light" , and having a semi transparent medium in the path of the reflecting light "e.g. Water vapor or smoke" resulting in something like this image enter image description here


-is this true & if not is there any technology that can project such 3dImages in thin air ?




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