paul0207@lemmy.sdf.org to EngineeringEnglish · 1 year agoHow to Make Roman Concrete, One of Human Civilization’s Longest-Lasting Building Materialswww.youtube.comexternal-linkmessage-square0fedilinkarrow-up19arrow-down10
arrow-up19arrow-down1external-linkHow to Make Roman Concrete, One of Human Civilization’s Longest-Lasting Building Materialswww.youtube.compaul0207@lemmy.sdf.org to EngineeringEnglish · 1 year agomessage-square0fedilink