Activity for stibâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
Building a (solid) ring around the earth Could you build a ring around the earth, so that it would just sit in the sky? I'm not talking a geostationary orbit of rubble like the rings around Saturn, but a solid structure just high enough to clear Mt Everest. As gravity would be acting equally on it from all sides it would just hover there wo... (more) |
— | almost 10 years ago |