Hello Lets make a few double slit experiments. Lets say we have water pond with a set of point size emitters on the left and a set of independent wave energy detectors on the right side. http://img560.imageshack.us/img560/571/slits1.png [Broken] Now let each point emitter emits wave but with big time intervals between each other. So we will have like many double slit experiments executed one by one. After all points finish emitting lets look how much total energy was detected by each detector separately. There it is easy to see that all detectors will measure almost the same amount of total energy. Now lets repeat experiment so that all points emits simultaneously. We will have total wave similar to this http://img339.imageshack.us/img339/1625/slits2.png [Broken] which will cross 2 slits and will make interference pattern on the detectors. So some detectors will measure much more energy than other. Am I right? Now the question: can we obtain the same scenario for light and how?