Talk:Waves/Superposition

Re superposition: How do 2 material waves actually pass through each other? Considering water waves, the energy transmits because water molecules receive kinetic and potential energy, and then pass it to other molecules. Right? But at an interference point there is no net movement of the material, no change of either kinetic or potential energy. So if the molecules' momentums are unchanged, how can they pass the tendency to change on? Or, is interference just an average effect, some molecules having momentum in one direction while a balanced number have momentum in the opposite direction?

Its just an average affect --flonejek 23:22, 27 Feb 2004 (UTC)