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Article #2596Re: Manhole covers - why circular?
From: Jimbo Harris
Date: Fri, 08 Jan 1993 02:21
Date: Fri, 08 Jan 1993 02:21
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1668 bytes
ghazel@eskimo.com (Geoff Hazel) writes: >In article <C0EHKG.AL5@watdragon.uwaterloo.ca> deghare@daisy.uwaterloo.ca (Dave Hare) writes: >>In article <1993Jan5.173440.10482@informix.com> robertw@informix.com (Robert Weinberg) writes: >>>Manhole covers are manufactured in circular shape, rather than oval or square, to >>>satisfy one paramount condition. >>> >>>What is the condition, and why does a circular shape satisfy it? >> >>Actually, access covers are circular for many reasons, and I often use this >>as a game with kids to get them to stretch their brains. >> >>I don't know which reason you have in mind, but here are some: >> >> - It is orientation free: it will fit in any position > ^^^^^^^^^^^^^^^^^ >In fact, I read that they were round in order to minimize the number >of decisions the sewer workers had to make. I heard it was to minimize the number of fatal head injuries caused by manhole covers falling through manholes upon men that are down above mentioned manholes. (You have to figure that any job that you could possibly get where you MIGHT be expected to jump down a manhole CAN'T require more brains than, say, a squirrel...) -Jimbo Harris
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Newsgroups: rec.puzzles Path: arc1-ca.pugleaf.net!sparky!uunet!statsci!statsci!jimbo From: jimbo@statsci.com (Jimbo Harris) Subject: Re: Manhole covers - why circular? Message-ID: <jimbo.726459678@statsci> Sender: usenet@statsci.com (Usenet News Account) Organization: Statistical Sciences, Inc References: <1993Jan5.173440.10482@informix.com> <C0EHKG.AL5@watdragon.uwaterloo.ca> <1993Jan6.173005.16045@eskimo.com> Date: Fri, 8 Jan 1993 02:21:18 GMT Lines: 27