Why do you think manholes are round in shape?
(You need to think a little crooked for this )
(In reply to
re(4): A solution by Charlie)
I don't think it would be possible to fit a triangular cover through in a method you describe, since the hole will always be slightly narrower than the cover so that the cover can rest on it when closed.
I do agree with the argument about being harder for a man to climb through.
But actually, i think that the lack of need to orient the cover properly in order to close it is the most compelling argument I have heard. (It's actually one that not many people come up with.)
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Posted by levik
on 2003-02-20 05:04:39 |