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The Concrete Pyramids

Discussion in 'Off Topic' started by TacticalNuke, May 21, 2007.

  1. TacticalNuke

    TacticalNuke Administrator

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  2. Antoinette

    Antoinette 10-Year Member Founding Member

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    Interesting. The chemical analysis of the "limestone" convinces me that the pyramids do contain the earliest known concrete.

    It is great to think about topics other than the service academies. Thanks for the distraction!
     

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