Activity for Erik
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
Can fiber optic cables be used to pipe sunlight into an underground bunker for growing plants? One major problem with living underground is you lose all of that wonderful energy provided by the sun. This energy is useful for many things including growing plants for food. A window is effectively a very short pipe for sunlight to enter a room in a normal house. Windows clearly allow enough of th... (more) |
— | over 5 years ago |
| Question | — |
Dark matter caused by Matrioshka Systems It seems like Dyson Spheres are always brought up in the context of harvesting power. However, another use for a Dyson Sphere may be to cloak your solar system/inner planets. If the star's output doesn't escape from the sphere then it can't be observed except through gravitational effects which drama... (more) |
— | over 7 years ago |
| Question | — |
What is the color of the sky in a hollow earth? Does the position of the sun in a hollow earth scenario affect the way light scattering would "color" the sky? My understanding is the reddish-orange color during sunrise/sunset is caused by the sun being at a more oblique angle in contrast to the standard blue when the sun is fully up. My intuit... (more) |
— | over 8 years ago |