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Pyramid Schemes

Discover how Ancient Egyptians built their Pyramids with innovative man-made stone covering, changing our understanding of ancient construction.

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The Times Online is reporting that

The Ancient Egyptians built their great Pyramids by pouring concrete into blocks high on the site rather than hauling up giant stones ...

If true, this would be quite amazing to me, and there appears to be some science (at least the words) backing it up.

... according to Professor Gilles Hug, of the French National Aerospace Research Agency (Onera), and Professor Michel Barsoum, of Drexel University in Philadelphia, the covering of the great Pyramids at Giza consists of two types of stone: one from the quarries and one man-made. "There's no way around it. The chemistry is well and truly different," Professor Hug told Science et Vie magazine. Their study is being published this month in the Journal of the American Ceramic Society. The pair used X-rays, a plasma torch and electron microscopes to compare small fragments from pyramids with stone from the ...

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