1. In the Wu experiment, what is the direction of the magnetic field applied to align the nuclei, from the normal point of view, and as seen in the mirror? What about the direction of the current flow in the windings of the magnet that produces the field?
2. Consider viewing the Wu experiment in a mirror located below the nucleus (the mirror being horizontal) instead of in a mirror located to one side of the nucleus (the mirror being vertical). Explain how the arguments in the text would be modified, but in such a way as to lead to the same conclusions.