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How the pyramids where built in Egypt

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to kadamix
Added  December 01, 2006
From  kadamix
Are the pyramids made out of concrete, a Are the pyramids made out of concrete, an artificial re-agglomerated limestone? Joseph Davidovits and the Geopolymer Institute crew shows that only few people is able to rapidly and easily produce several tons of pyramid stone blocks. ... (more) (less)
Tags pyramid   egypt   stone   concrete davidovits  theory  block   (more) (less)
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