Transport system is based on rolling roads - roads move rather than you. Road comprises of many strips moving at different speeds. Speed of nearby strips differ in small enough amount that you can walk across; strips in the middle of the road move rather fast.
- Raymond J Healy & J Francis McComas (Eds)' "Adventures in Time and Space".
Fact sheet.First published: Astounding, June 1940.
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Download MP3 of radio adaptation. (this post is based on a reading of text version of the story).
Related: Stories of Robert Heinlein.
Note: Why is this post so short?