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Article #2596

Re: Manhole covers - why circular?

#2596
From: Jimbo Harris
Date: Fri, 08 Jan 1993 02:21
27 lines
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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Message-ID: <jimbo.726459678@statsci>
Path: arc1-ca.pugleaf.net!sparky!uunet!statsci!statsci!jimbo
References: <1993Jan5.173440.10482@informix.com> <C0EHKG.AL5@watdragon.uwaterloo.ca> <1993Jan6.173005.16045@eskimo.com>

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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