Product Information

Catenary Arch is an arch assembled out of numbered blocks. The blocks are laid out
on a horizontal board and then tilted into a vertical position. In spite of the fact that
the blocks are relatively slender, they can stand due to their catenary shape. Visitors
can compare the shape of the arch to the shape of a freely hanging chain and see
that the shapes are the same. Graphics, drawings and photographs explain why the
catenary is a good configuration for an arch. The mathematical formula for the
catenary are also presented.

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