Activity for Notiophilusâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
How thick should the roof of a large cave be to safely build a city on top of it? Fullmetal Alchemist (2003) features a giant (and I mean stupidly big) cave under a large and busy metropolis. Nobody is aware of its existence, which means that at least since the city's founding (let's say 150 years) there must have been no subsidence of any kind. What little I know of cave-ins te... (more) |
— | over 7 years ago |