post-Arabic numerals on their time settings. Secondly, on arrival, a timecycle has zero dimensions but expands rapidly to its destination volume, displacing air molecules and small objects, settling beside a big object or above ground if it had been aimed at a basement that no longer exists. So could a cycle be programmed to stop at a smaller destination volume, thus achieving the sf concept of miniaturization?
There are miniature superheroes, including Ant-Man;
James Blish's character, Gordon Arpe, leads an expedition to the microcosm;
Isaac Asimov novelized the film Fantastic Voyage, about a submarine in a blood-stream, then wrote an original novel on the same theme;
CS Lewis, having learned about travel by size change from "scientifictionists," used it as his means of traveling from the city of Hell to the foothills of Heaven in The Great Divorce. (Lewis' point is that Heaven is as vast as God and creation whereas Hell is as small as the introverted soul.)
In his description of a timecycle's arrival, Anderson briefly hints at an idea that could have been another novel.