>There is a curve for which the transition from one radius of curvature to >another is as gradual as possible. I too have forgotten its name however it >can be formed by bending a length of material of constant stiffness (such as >a garden hose) into a loop by holding only its ends.
That's a catenary. >I don't think the occupants of a car would guide it through a path that >would cause them discomfort. So even if a road did have a jump in radius of >curvature, the path traced out by a car wouldn't. (Unlike a roller coaster, >a car doesn't have to travel out any particular path). No, but you do want to encourage drivers to stay in their lanes. --Peter _______________________________________ Peter Abrahams [EMAIL PROTECTED] The history of the telescope & the binocular: http://www.europa.com/~telscope/binotele.htm
