round cross section is the most economic way to provide certain strength.
Michael Morris
Ranch Hand
Joined: Jan 30, 2002
Posts: 3451
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Because a circle is the only shape that you can't orient in such a manner to drop into the hole.
Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius - and a lot of courage - to move in the opposite direction. - Ernst F. Schumacher
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