How ancient builders made wood defy gravity
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How ancient builders made wood defy gravity
If you carve a cross-shaped groove at the top of a wooden column and fit in two interlocking beams, the beams and column lock together, forming a stable frame structure strong enough to hold up a roof. And just like that, you've built a house. But soon you realize a problem. Rainwater drips onto the columns, soaking them until they rot. So you ...
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