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An analysis of the provenance of the Matarrubilla stone, a large megalith at Valencina in Spain, indicates that the ...
Modern Engineering Marvels on MSN23h
How Neolithic Engineers Crafted the Menga Dolmen to Outlast Modern Marvels with Millimetric PrecisionDitch steel, glass, and reinforced concrete 6,000 years ago, Neolithic engineers in southern Spain were already accomplishing ...
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