Roman Concrete: The Recipe Was Never Lost. The Knowledge Was.
Two thousand years ago, Roman engineers poured concrete straight into the open sea, and it is stronger today than the day they poured it. The recipe was written down around 25 BC and the book was never lost, yet for roughly a thousand years nobody on Earth could make this material. This is the story of a technology that died with its instructions open on the table, and of the discovery, made in our own lifetime, that the flaws everyone saw in Roman concrete were actually the secret. Chapters: 0:00 Stronger than the sea 1:08 What Rome poured 3:06 The forgetting 5:13 The answer 9:32 Every day stronger Go deeper: Building for Eternity: The History and Technology of Roman Concrete Engineering in the Sea: https://www.amazon.com/s?k=building+for+et... (As an Amazon Associate I earn from qualifying purchases.) Rome wrote the recipe down and the craft still died for a thousand years. What knowledge are we sitting on right now that lives only in hands, not in writing? Make your case below. #history #ancienthistory #documentary #archaeology #romanconcrete #ancientrome
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