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The Dome Challenge
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Concrete Dome
One of the largest domes in the world, the Pantheon, is made of concrete. You saved a lot of money building this dome with concrete. But remember: concrete is very heavy. About halfway down the curve of the dome, the weight of the structure is pushing the sides outward, creating a stress called tension. Cracks are beginning to show.

How will you prevent your massive structure from collapsing?

Build buttresses to support the dome Carve holes in the dome to make it lighter Tie an iron chain around the dome to keep it from spreading
Build buttresses to support the dome Carve holes in the dome to make it lighter Tie an iron chain around the dome to keep it from spreading

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