Advance Double Slit Experiments Showing New Mysteries

The normal double slit experiments (we refer to it as Straight-Parallel-double-slit) are basic experimentsand Feynman’s mystery in the optics/quantum mechanics. In this article, we show the following newmysteries: the characteristics of the interference patterns of the optical slit experiments depend onwhether the slits are straight-lines or curve-lines and whether two slits are parallel or non-parallel; andindependent on whether there are missing segments at the intersection of, for example, cross-double-slit. We ignore the effects of both the width of the slits and the distance between two slits and then,show the following: there is no variable in Straight-Parallel-double-slit; Straight-Non-Parallel-double-slit has one variable, the angle between two slits; Curve-Parallel-double-slit has one variable, thecurvature of the slits; Curve-Non-Parallel-double-slit has two variables, the angle and curvature, andthe curvatures of two slits may be either the same or different. The characteristics of patterns depend onthose variables. The complete and consistent interpretation is a challenge. The above experiments showdeeper mysteries and would motivate further study of optics.