1. fluids flow better over a round contours (opposed to any other shape)
2. round / cylindrical shapes are the strongest for fluids
3. while manufacturing what the cover sits on (T junction) its more cost effective to stay with the same shape rather than changing to another
4. because people are round they fit easier when going down inside a manhole
2006-12-17 00:15:05
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answer #1
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answered by Truth D 4
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Ever Seen A Star Man Or A Square Man?
So Why Do You Think They're Round Man?
Have A Gooday And A Bonza Christmas Mate!
2006-12-17 08:22:37
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answer #2
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answered by Paul R 5
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To prevent them from being dropped back in through the hole, as other shapes could drop back on the slant of the hole
2006-12-17 08:18:23
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answer #3
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answered by Anonymous
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Unlike some other people, I am round.
2006-12-17 08:15:14
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answer #4
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answered by Anonymous
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Because they were copied from the shape of a donkey's holes.
2006-12-17 08:16:52
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answer #5
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answered by markos m 6
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lots of things are round--- it's life--- bunch of circles. Although, I like triangles :)~
2006-12-17 08:17:38
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answer #6
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answered by erotikos_stratiotis 4
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So men get their big fat behind into it
2006-12-17 08:15:37
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answer #7
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answered by Kitten Hood 5
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its natural
2006-12-17 08:16:15
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answer #8
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answered by PAM 2
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because it hurts when it's square...
2006-12-17 08:18:00
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answer #9
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answered by Anonymous
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b/c god put us here
2006-12-17 08:15:51
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answer #10
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answered by Anonymous
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