For example, what math was used to calculate the capability of dragline silk from an orb weaver spider that is
lighter than cotton, yet ounce for ounce stronger than steel, tougher than
kevlar (used in bullet - proof vests), that if the silk were 0.4 inch thick with strands 1.6 inches apart and enlarged the size of a football field, could stop a jumbo jet in flight, that is flying at an average speed of about 600 mph?