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Truly amazing how even after 2000 years we only now know how the romans made their cement. And the whole idea of a cement that has characteristics superior to what we have today is really quite unbelievable.
The Romans were surprisingly extremely adept engineers. Really amazing!
Truly amazing how even after 2000 years we only now know how the romans made their cement. And the whole idea of a cement that has characteristics superior to what we have today is really quite unbelievable.