Activity for Tharaib
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
What's the longest plausible orbital period for a habitable planet with a 3:2 spin-orbit resonance? What's the longest plausible orbital period for a habitable planet with a 3:2 spin-orbit resonance? I want a planet with a 3:2 spin orbit resonance (which would experience 1/3 of a year of nighttime followed by 1/3 year daylight), but I want relatively long periods of dark and night liquid water... (more) |
— | over 7 years ago |
| Question | — |
Plausibility/mechanisms for biogenic silica on a terrestrial planet with a reducing atmosphere Situation: a large terrestrial planet (a 'super earth', around 9 earth masses with a surface gravity roughly double earth's) with a mostly hydrogen atmosphere and ammonia oceans (pressure is high enough that ammonia is liquid up to around 50°C) life uses ammonia as a solvent plants convert methane... (more) |
— | over 7 years ago |
| Question | — |
What exactly would happen if a black hole was introduced into the sun? A ship powered by a black hole of a few hundred thousand tons (say, under $6 \times10^8$ kg, which would have a lifetime of several years and a power output of a few hundred petawatts) crashes (malfunctions or is piloted deliberately, it doesn't matter) into the sun. The heat destroys the hull and ex... (more) |
— | over 7 years ago |
| Question | — |
What effect would liquid sulfur oceans, sulfur dioxide in the atmosphere have on visibility, sound propagation and other environmental information? EDIT: I eventually managed to find the absorption spectra of SO2 online - it absorbs in the ultraviolet range only, not in the visible light range, so the only factor affecting light transmitting through the atmosphere will be the level of sulfur vapor humidity. Sections of the question have been str... (more) |
— | over 7 years ago |