CONCRETE Is Still Hardening After 2000 Years — Feynman Was Right скачать в хорошем качестве

CONCRETE Is Still Hardening After 2000 Years — Feynman Was Right

Can a building material actually get stronger over 2,000 years? The Pantheon's unreinforced concrete dome — poured in 128 CE — still holds the world record. Your local highway overpass? Crumbling after 50 years. Something doesn't add up. In this video, we explore a 2023 MIT discovery that finally cracked the Roman concrete mystery — tiny calcium-rich deposits called "lime clasts" that give ancient concrete a built-in self-healing mechanism. This lecture draws on the Feynman approach of understanding materials from the atomic level up, inspired by his famous "Atoms in Motion" lecture (Feynman Lectures on Physics, Vol. I, Ch. 1) and his lifelong insistence that everything makes sense once you see what the atoms are doing. 📚 SOURCES: Seymour, Masic et al., "Hot mixing: Mechanistic insights into the durability of ancient Roman concrete," Science Advances, Vol. 9, January 2023 Masic et al., "Roman concrete from an ancient building site in Pompeii," Nature Communications, December 2025 Marie Jackson et al., "Phillipsite and Al-tobermorite mineral cements produced through low-temperature water-rock reactions in Roman marine concrete," American Mineralogist, 2017 Richard P. Feynman, The Feynman Lectures on Physics, Vol. I, Ch. 1: "Atoms in Motion," 1963 Richard P. Feynman, "There's Plenty of Room at the Bottom," APS lecture, December 29, 1959 🎬 CREDITS: Written by: The Physics Confessional Voice: AI-generated (TTS) Visuals: AI-generated Concept & Research: Oxadow VOF ⏱️ TIMESTAMPS: 00:00 — The Pantheon vs. your crumbling highway 02:15 — What are the atoms actually doing inside concrete? 05:00 — Portland cement's fatal flaw: no immune system 08:10 — The volcanic ash theory and why it falls short 11:00 — Those mysterious white lumps nobody could explain 14:20 — Quicklime, hot mixing, and a violent chemical secret 17:45 — Self-healing concrete: atoms repairing their own cracks 20:30 — Seawater that destroys modern concrete feeds Roman concrete 23:00 — 8% of global CO₂ and what Roman wisdom means today 25:30 — The Pantheon is still becoming what it's going to be What ancient technology do YOU think we've lost? Drop your answer below 👇 ⚠️ WARNING: [This video is AI-generated (synthetic voice and visuals). It is an original, fictional lecture inspired by Richard Feynman's teaching style and public ideas, and is not an authentic recording, endorsement, or statement by Richard Feynman or his estate. Any resemblance is for educational/creative purposes]