R.C.Macaulay wrote: Harry wrote.. >An article on the work titled "Paradox in Wave-Particle Duality" recently published in Foundations of Physics, a prestigious, refereed academic journal, supports Albert Einsteins long-debated belief that quantum physics is incomplete. For eight decades the scientific community generally had supported Niels Bohrs ideas commonly known as the Copenhagen Interpretation of Quantum Mechanics. In 1927, in his ½Principle of Complementarity, he asserted that in any experiment light shows only one aspect at a time, either it behaves as a wave or as a particle. Einstein was deeply troubled by that principle, since he could not accept that any external measurement would prevent light to reveal its full dual nature, according to Afshar. The fundamental problem, however, seemed to be that one has to destroy the photon in order to measure either aspects of it. Then, once destroyed, there is no light left to measure the other aspect.
Howdy Harry, Such a fascinating subject with no end of mystery. Some time back I posted a fun experiment to twist one's mind. An old time movie house used a silvered sceen to receive the projected light. The screen had tiny perforations. One could stand behind the screen in the dark and see a perfect image of the movie ( in reverse). The fun begins when you think of positioning a mirror behind the first screen in order to "catch" the reverse image. Using a prism to project the original image on the face of the screen so to allow an unobstructed mirrored image to cascade back through the perforations and onto another mirror would result in cascading the images into infinity. What does all this mean.. time also has a "weight". Richard You can do something similar with a video camera and a monitor. Connect the monitor to the video camera so it displays the the video image in real time, then point the video camera at the monitor.... Harry
