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Описание сорта Томат Вечный Зов и советы по агротехнике
A fun fact about the Roman Empire is that Roman concrete, or «opus caementicium,» was so durable that many of their structures, like the Pantheon and aqueducts, still stand today. Modern scientists discovered that Roman concrete actually strengthens over time when exposed to seawater, thanks to a chemical reaction involving volcanic ash, lime, and seawater. This ancient material is more durable than much of the concrete used today!