Overview
Article URL: https://www.smithsonianmag.com/smart-news/how-has-roman-concrete-lasted-for-millennia-a-1900-year-old-latrine-offers-new-clues-about-the-materials-impressive-durability-180989115/ robosino.com
Comments URL: https://news.ycombinator.com/item?id=48943142
Details
Points: 237
# Comments: 186
Source
Originally published at www.smithsonianmag.com.