Introduction
The Problem
This is a tribal effort. You
must build a "3 and 4" rainbow bridge using natural materials. I will provide
stone abuttments for you. Using 30-cm "logs" cut from goldenrod and ragweed
stems, you must build a bridge ____ cm wide and which spans a 60
cm river. Your "bamboo" rope will be the same hemp or cotton cord you used
in the Tower of Power problem.
Criteria
Your bridge must hold up a 10pound lead weight
place in the center of the bridge.