dream of you

The Cosmos television series and this topic represent a hopeful experiment in communicating some of the ideas, methods and joys of science.The topic and the television series evolved together. In some sense each is based on the other. But topics and television series have somewhat different audiences and admit differing approaches. One of the great virtues of a topic is that it is possible for the reader to return repeatedly to obscure or difficult passages; this is only beginning to become possible, with the development of videotape and video-disc technology, for television.There is much more freedom for the author in choosing the range and depth of topics for achapter in a topic than for the procrustean fifty-eight minutes, thirty seconds of anoncommercial television program.