how were the pyramids built

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Building the Great Pyramid in a Year
An Engineer's Report
Gerard Fonte, an engineer with 30 years of varied hands-on engineering experience ranging from commercial products to state-of-the-art military designs, shares an exciting theory on how the Great Pyramids were probably built.

Gerard C. A. Fonte Price range: $22.95 through $32.95 View Details This product has multiple variants. The options may be chosen on the product page