Hello...sorry about the vague nature of the question..but I am trying to learn in an 'economical' sort of way. That is asking almost redundant questions..but answers I can work with in a 'free style' way...and gain understanding in the process or be able to ask another question. Can someone explain to me what the principal says? I know you are not supposed to be able to determine both the position and the momentum of a particle at the same time on the sub-atomic level. The act of measurement disturbs the result..apparently. A particle I am guessing can not have both at 'the same time'. Does the fact that there is no such thing as an 'instant' or 'frozen' period of time explain why you can not pin down 'both' pieces of info? Bye P.