Activity for Orphevsâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
Small-scale aviation without fossil fuels In my setting, fossil fuels do not exist. I'm handwaving an alternative behavior of radioactive material, and alternative magnetism-like forces. These are explained below. My question now is: Can there be (nuclear) small scale aviation without fossil fuels, given the constraints below? Alternative ... (more) |
— | almost 7 years ago |
| Question | — |
Is a "long exposure"-like night sky possible? Under what conditions would a planet's night sky look like this to the human eye? The angular speed of the stars relative to the planet would need to be high enough for the stars to blur into themselves. Is there a (realistic) way for such a planet to exist? I'm not sure how the incredibly fast r... (more) |
— | almost 7 years ago |