A link or two.<br /><br />From the website
Science Fiction and Modes of Space Travel;<br /><hr /><quote>The physical principles underlying science fiction writing during this period were a complicated pastiche of ideas derived at least in spirit from the sweeping developments then occurring in relativity theory and atomic physics made during this time. Most of these developments were only partly understood by the authors of that time, which is probably why SF stories often hinged on outright errors even in some of the most elementary aspects of the physical world. For instance, believing that the Bohr atom in vogue during the early 20's with its planetary electrons was literally a microcosmic solar system. Our solar system was in turn simply an atom in a much larger universe. Several authors imagined people taking journeys to these other worlds within the atom by using machines that either shrank or enlarged their bodies by suitable scales as in S.P. Meek's Submicroscopic (1931), or G. Peyton's short story The Man from the Atom(1926). In the later instance, probably the earliest story of this kind, one Prof. Martyn builds a machine that subtracts or adds atoms to the human body until it has grown or shrunk to the desired size.<br /><br />Between 1924 and 1927, the physicists Heisenberg, Schroedinger and Dirac had all but written the last pages of the modern theory of atomic structure based on quantum mechanics. The Bohr-Sommerfield 'planetary' atom though conceptually simple was, nevertheless, invalid so that there was no longer a basis for thinking that electrons were miniature planets by this time. Yet SF based on this curious principle of 'worlds within worlds' persisted even as late as 1949 in Stan Raycraft's Pillars of Delight and in Henry Hasse's He Who Shrank. </quote><hr /><br /><br /><br />From the website
All possible universe <div class="Discussion_UserSignature"> </div>