----- Original Message ----->> > just use the example of a very weak tube,
like a cardboard paper towel
>> > tube.
>> > It will stand upright very nicely by itself... but then add a couple of
>> > strong cords pulling down at a steep angle and it will crush even
>> > without
>> > an added load of wind.
>>
If your going to build your tower out of cardboard, don't guy it?
k7puc
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