I have been reading quite a bit about bell pairs lately and would like to know about the actual experimental behavior of them. Here is a summary of my current understanding: Take two particles A and B entangled in such a way as the spin of each is opposite to the other, or in other words, a pair of spin-anti-correlated particles. In the following paragraphs, "Ax" refers to the spin of particle A along the x axis, which can be either up/positive/+ or down/negative/-, and so on with particle B and the other axes (y and z) of each. These "twin" particles are separated so that they can no longer directly interact. Measuring Ax will yield either + or - with equal probability. Say for the sake of example that it is +. In my understanding, successive measurements of Ax will yield + with a probability of 100% and the next and any successive measurements of Bx will yield - with a probability of 100%, until a different axis of either particle is measured, after which these axes will return to an uncertain state. At this point a measurement of Ay, Az, By, or Bz will yield + or - with equal probability. Say we measure By and find it to be -. Now, measuring By will always yield - and measuring Ay will always yield +, until a different axis of either particle is measured. Measuring a different axis will cause the y axes to return to an uncertain state. The main points which I am unsure on are (a) that measuring an axis of one particle will cause that axis and that of the twin to remain the same for consecutive measurements (i.e. without measuring a different axis), (b) that measuring Ax several times and then Bx several times will not cause the measurements to change from the first of each, and (c) that measuring any axis of either particle will cause all other axes to switch back to a superposition or uncertain state, even if some of them have been measured before. If you guys can sort this out or point me to an accurate computer simulation of Bell Pair behavior, I will be very grateful!