This book’s cover image is a self-portrait painted by the British psychoanalyst and author Marion Milner. Dressed in the painter’s archetypal blue smock, at easel and with palette and brush at hand, Milner rests her gaze intently on the canvas as the viewer catches her in the act of creation. The painting is undated but, given the subject’s youthful appearance, was likely created during M…
The discovery of radiation belts dates back to the dawn of the space age when theknowledge of the physical properties of the magnetosphere was still in its infancy. InFebruary 1958 the first U.S. satelliteExplorerI1carried a Geiger–Müller instrumentthat was designed to measure cosmic radiation. It indeed did so until the space craft reached the altitude of about 700 km when the instrument my…