Activity for Ian
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
Gravitational Implications of a "Light Year City" The "Light-Year City" Questions "” What would be the gravitational implications of a city in the far, far distant future, with an area spanning one square light year (3.456 × 10^25 mi² area)? This question has been broken up into sub-topics, the other questions related to this idea are listed here... (more) |
— | about 8 years ago |