“Where do you come into it?” Kirby rubbed his pipe against his chin. “Okay, how do you separate out isotopes of a very rare metal in industrial quantities? One notion is to shoot it in the form of an ionized gas through a magnetic field. The lighter ions get deflected a tiny bit more, so you stream ’em out and catch them. The whole game depends on the magnetic field being kept stable, because any wavering jumbles up the ion stream. Precise control of voltages is my business.”
