QUANTUM MYSTERIES REFINED

A gedanken experiment discovered by Lucien Hardy is translated into a very direct black-box gedanken demonstration of quantum nonlocality wi th red and green lights, using only two far apart detectors each of wh ich operates in only two modes. The quantum mechanical underpinnings o f the gedanken demonstration are quite simple. (This paper provides a text fbr the Klopsteg Memorial Lecture to the American Association of Physics Teachers at Notre Dame University, August 11, 1994.)