Why is it that things appear smaller the farther they are away and bigger the closer they are away? It is almost as if the magnitude of their dimensions (length, width, and height)changes. But in reality it is still the same object. My cup x distance closer to me than the door may appear 1/6th size of the door itself. It is not as if the object got bigger but it seems as if. Why do things seem bigger or smaller in relative distances through space? It is interesting because things seem to change size close to the speed of light (lorentz contraction).