An analysis has been performed of the theories and postulates advanced by von Neumann, London and Bauer, and Wigner, concerning the role that consciousness might play in the collapse of the wave function, which has become known as the measurement problem.
giving out or weakness of the knees can have different causes. These can include problems outside the knee joint itself (weak muscles for example) or inside the knee (torn ligaments or cartilage). See an orthopaedic surgeon to address your individual problem.
Of the causes of knee pain, the one you will seldom hear about is chronic dehydration. Actually, a more correct description of the knee pain cause is chronic fluid and electrolyte imbalance. Not enough electrolytes: You are not getting enough minerals and salts in your body where they can do the most good.