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16th century 'Manhattan of the Desert' with mud skyscrapers facing existential threat
It is thought to be the oldest city in the world to use vertical construction and was an important caravan stop on the ...
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A forgotten 16th century manuscript that reveals spaceflight instructions
In the 16th century, Austrian military engineer Conrad Haas composed the Sibiu Manuscript, detailing advanced concepts of rocketry and space travel. Discovered in the 1960s, Haas' manuscript ...