Does that experiment proved that the double slit experiment works on a larger scale and what is it actually about? Can someone explain it to me?
The double-slit experiment is a result of the wave-particle dual nature of photons. It is postulated that ALL matter possesses this same attribute. However In other words, the theory says that ALL matter would exhibit this behavior but it gets very difficult to detect above a certain threshold because, as I understand it, the size of the effect relative to the size of mass in question quickly diminishes to being immeasurable.