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MEET THE ANCIENT STONEWORK WE STILL CAN’T RECREATE Machu Picchu’s polygonal masonry isn’t just pretty, it’s earthquake-proof. Giant stones are cut so perfectly you can’t slip a credit card between them, with special “fuse stones” that break under pressure to save the wall. The blocks? Diorite, one of the... show more
107,159 views • 1 year ago •via X (Twitter)
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