The Universe

Abstract

Ever since Man grew interested in the structure of the macrocosm, the belief prevailed that the stars are an eternal and never changing ornament decorating the night sky. Of course, it did not remain unnoticed that in the background of this impressive permanency on a huge scale, there are several stars (planets) whose positions with respect to the Earth do vary. A consistent system arose, synthesizing a tremendous amount of empirical material accumulated by ancient oriental and Greek astronomers. Their world consisted of immovable stars “pinned up” to a rotating sphere, as well as of the planets and the Sun moving around the Earth, the center of the Universe.