Of matter and spirit: selected essays by Charles P. Enz

As the title suggests, attention is directed on the one hand toward the material world which is viewed in its extreme spatial extensions of the universe and of the elementary particles. In particular, the fascinating notion of the void and its fluctuating energy is the subject of various discussions, as is the subdivision of material bodies and its limits. The latter as well as the limit of gravitational stability are depicted in a diagram leading to the ultimate point of the Planck mass and length.