Recent content by deadbeef

According to author (in video) he is observing interference when one path is considerably longer that other path. Is there some error in his experiment?

Hi. As i understand in double slit experiment photon can arrive at slits through different paths (longer and shorter) and it would still show interference pattern. My question is - if there was some path cutting device in a way of photon (on longest path after length that photon arrive at...