Gemini6Ice (gemini6ice) wrote in mental_workout,
Gemini6Ice
gemini6ice
mental_workout

Revolving Door Solution

Here's my (probably not the only) correct solution the question about revolving doors I posted earlier in http://community.livejournal.com/mental_workout/17764.html .




When the door "hits" the wall, it passes through, because the wall is made up of spaced stiles; they allow the door but not the people through just as the one-way revolving door exits of some Boston and New York subway exits (maybe Chicago and DC too?). The distance between the discovery of what's happening and the end of the entrance to the revolving door prevents people from turning around and not entering the revolving door before they are cut off from the entrance. To make the revolving door convincing, it will need to be mostly steel, not glass, or else a potential newcomer would see the horrified faces of the people already inside.

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