Activity for Travis Christianâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
What would a receding seabed provide for human civilization? In my world, the Straits of Gibraltar have been closed during a post-apocalyptic glacial period and the Mediterranean is isolated from the oceans. The result is similar to the Messinian salinity crisis but less extreme, with the sea level reaching equilibrium somewhere around -400m. This leaves much ... (more) |
— | almost 8 years ago |
| Question | — |
How would a planetary ring of impact debris affect the development of civilization? Say an early human civilization is arising on an earth-like planet (Earth, in fact) with one notable difference to the sky: a small ring of debris orbiting the planet. Assume the ring is clearly visible to the naked eye, formed from a recent (on a cosmological scale) but pre-historic asteroid strike,... (more) |
— | over 8 years ago |