A gauge named for this physicist produces a wave equation with the longitudinal component in the direction of motion eliminated, leaving only the two polarizations seen in electromagnetic radiation. The divergence of the magnetic vector potential is set to zero in a gauge named for this physicist. Taking the divergence (-5[1])of both sides of an equation named for this physicist and then using the sifting property of the Dirac delta function returns Gauss's Law. The energy needed to overcome the repulsion (10[1])between nuclei (10[1])and (10[1])allow (10[1])for nuclear fusion is called this physicist's ■END■