Roman concrete was remarkable because it could last for thousands of years, even underwater. Its mixture of lime, volcanic ash, and water allowed it to develop cracks that didn’t weaken it. When water entered a crack, it reacted with the lime to form calcium carbonate, which gradually filled the crack and bonded the concrete back together, essentially giving it a natural self-healing ability.
It's not a 'cultural difference', it's evil. The ODD Cast
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Ep 3714b - Fifth Column, We Are Taking Back The Country From The Evil Tyrants, Fail-Safes In Place
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Fifth Column, We Are Taking Back The Country From The Evil Tyrants, Fail-Safes In Place
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