JF Ptak Science Books Daily Dosage from Dr. Odd 1

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Reminds me of Heinlein's story 'The Roads Must Roll' (1940).
Posted by: Spacearcheology | May 29, 2012 at 10:03 PM
> But since it was always moving it would have to move a little slowly for people to hop on and off
Not *that* slowly. The pictures don't make it clear, but the captions explain that the platforms are made of several parallel moving sidewalks, each 3mph faster, that you cross successively to bring you up to the 12mph of the seated conveyor. Definitely not for the un-agile.
Posted by: Ray Girvan | May 30, 2012 at 04:41 AM