but it is those rounded edges that make it work. . .flat surface collect =
wind or sail boats would not work.
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SwampBug
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"Swingman" wrote in message =
...
"SwampBug" wrote in message
http://www.monolithic.com/gallery/ho...ictorial1.html
That's just a pyramid with the edges rounded off.
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Last update: 8/29/05