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Did you know you manipulate the refraction everytime you shoot a photo? It is a phenomenon which causes a beam of light to bend if it touches a medium that could let light throughout, for example as lens or water. When light moves from one medium to another, the difference https://lutz53.weebly.com/blog/scratchoff-worldmap-by-deluxe-great-places-ive-been-on-the-entire-world-travel-map


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