31. Thus you get the interference patterns you describe. 32. It is this introduced phase difference that creates the interference pattern between the initially identical waves. 33. An interference pattern results, marking out the detail. 34. When we do that, the interference pattern disappears. 35. This is important because two waves of different frequencies do not produce a stable interference pattern . 36. Measurement changes can dramatically modify the individual interference patterns , but always so that this erasure occurs. 37. Then, according to the Copenhagen interpretation, the case A applies again and the interference pattern is restored. 38. The result is that there is no change in the interference pattern , and therefore no measurement change. 39. In optical mineralogy, a petrographic microscope and cross-polarised light are often used to view the interference pattern . 40. In physics-speak, the moire effect is " a beat frequency between two other frequencies creating an interference pattern ,"
