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How-To:  Build A Reciprocal Roof

Brian Liloia documented his build of this unusual round roof in 2008, while living in Missouri. This type of self-supporting structure, in which each beam bears the weight of another, and has its weight born by yet another, and all arranged such the load is thus distributed ’round in a continuous cycle, is called a reciprocal frame. It requires at least three members, and you can build a simple working model with matchsticks. [via No Tech Magazine]


I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I am a long-time contributor to MAKE magazine and My work has also appeared in ReadyMade, c't – Magazin für Computertechnik, and The Wall Street Journal.

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