Where does the St. Louis' Gateway Arch get its unusual shape? The shape is the same as the natural shape of a sagging chain held at both ends-also known as a catenary. Students construct the catenary arch from the provided blocks and template to see firsthand the strength and stability of this type of arch, and where it might be useful. A perfect companion to the Roman Arch Set, AP4628. Comes complete with detailed instructions and historical background.
Additional ResourcesNo Additional Resources at the time.
Flinn Catalog/Reference Manual Page 608
Flinn Middle School Catalog/Reference Manual Page 307