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by aurizon
Mon Feb 18, 2013 11:07 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1175:"Moving Sidewalks"
Replies: 78
Views: 21745

Re: 1175:"Moving Sidewalks"

Why not a river of quicksilver, of variable depth (1 foot to 10 feet deep) and constant width and people ride in boats with dragfins so they stay at stream speed and do not over-run, and with collapsible rolls of material connecting the ends to allow for speed changes and with the mercury surface co...

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