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.
Causes of Knee Effusion. Osteoarthritis. Osteoarthritis can occur after injury or most commonly with wear and tear of joints with aging. Osteoarthritis causes destruction of the cartilage the cartilage that cushions the ends of the bones.