Super Structures

What makes an arch strong? Why are long bridges hung from cables? How do towers stand so high? Discover the history and the science of the world's most impressive structures, from the ancient pyramids to today's tallest skyscrapers—then explore the engineering principles at work by creating your own model structures with this set for readers 7 to 10. Build a pyramid, colonnade, arch, dome, suspension bridge, arch bridge, Eiffel Tower, skyscraper, Ferris wheel, and wind turbine using 173 laminated cardboard pieces and the 12 plastic nuts and bolts provided. These are substantial models (the completed suspension bridge is nearly 20 inches long), and you can read about real-world examples in the oversized companion book.