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Brunelleschi's cathedral was, on its own, an example of this

June 1, 2017 by Lena Webb

Brunelleschi's cathedral was, on its own, an example of this phenomenon. "The fact that a cathedral like this could be built by a man with no architectural training," says Guardincerri, "should be one of the most fascinating phenomena in history."

Brunelleschi's cathedral was built in a traditional way that allowed for the formation of an enclosed dome. A catenary dome is a structure that can be built with all the natural forces of the sun, winds and air. But a cathedral with an enclosed dome is not very common. The most popular cathedral designs are the ones that use the outermost edge of the square dome, which forms a natural dome.

Because an enclosed dome has a low center of gravity, it can be constructed by a single man. But the most common dome designs incorporate a wide-open opening that allows the man to build the entire structure without sacrificing the structure's natural beauty. The interior is then filled with a mix of natural blue and white sand, and natural steelwork.

Brunelleschi decided to use the interior to increase the dome's shape by allowing it to rise more than 100 feet above the ground. He called it one of the most common building designs of the 20th century.

The cathedral's central dome spans about 9,500 square feet, or more than the entire northern hemisphere. The central dome spans about 9,600 square feet, or about the entire northern hemisphere. Photo: Courtesy of the National Museum of Natural History

The cathedral's interior is also shaped like a tree. It is built from a single piece of wood, which is also supported by two layers of wood and a single piece of metal. The wooden and steel pieces are supported by a support system that is anchored by an internal system that is anchored by an internal force. The support system is supported by two layers of a reinforced polycarbonate core, known as a truss. The truss is a material that is a strong and durable anchor for the entire structure (think the high-strength steel that we use today). In the cathedral, it is a simple and elegant system that works well for both architectural and architectural applications.