How Ancient Romans Made Stronger Concrete Than Today
Автор: Insider Tech
Загружено: 2017-07-06
Просмотров: 147003
Описание:
Many structures built by ancient Romans around 2,000 years ago are still standing, and some are still in excellent condition. Over the last decade, researchers have come discover the Romans' secret concrete recipe that has maintained so many of its now-ancient buildings.
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