Heisenberg Uncertainty Principle
A formal statement of this (from Fourier analysis) is: ?x * ?k????????
(where k = 2?/?, and ? indicates the uncertainty in the value)
But from the DeBroglie Hypothesis, ? = h/p, this uncertainty relation becomes:
?x * ?(2?/?) = ?x * ?(2?p/h) = 1/2 , or