Timeline for What would influence an alien race to map their planet in a way other than the traditional map of the Earth
Current License: CC BY-SA 4.0
9 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 29, 2019 at 15:09 | comment | added | Foo Bar | @YellowSky a constructed world could be a cube if made out of the right materials. physics.stackexchange.com/q/505094 However it wouldn't count as a "planet" because it isn't rounded by gravity! | |
| Sep 23, 2019 at 16:37 | comment | added | Jyrki Lahtonen | FWIW I once asked how large a piece of rock must be for gravity to force it into a nearly spherical shape. A trained astronomer gave a ball park figure of 600km in diameter | |
| Sep 22, 2019 at 14:13 | comment | added | Foo Bar | I added a bounty to this unanswered question: physics.stackexchange.com/questions/130789/… | |
| Sep 22, 2019 at 13:27 | comment | added | Yellow Sky | @FooBar - Yes, please, do ask that on Physics.SE, I'm interested to know it, too, it was just my guess. | |
| Sep 22, 2019 at 13:24 | comment | added | Foo Bar | A planet-sized diamond might be able to support itself, but the Moon in Oblivion is impossible in real physics. Those three largest pieces would each collapse to a spheroid, and the other pieces would either fly away or crash back down, they wouldn't remain close but not touching like that. | |
| Sep 22, 2019 at 13:09 | comment | added | Yellow Sky | @FooBar - Yes, unless the planet is made of diamond or something even harder. Also, remember how Moon looked like in the "Oblivion" movie. | |
| Sep 22, 2019 at 13:00 | comment | added | Foo Bar | FWIW, any planet capable of sustaining surface water (which requires a thick atmosphere for pressure) would collapse back to a spheroid after a collision due to self-gravity. | |
| Sep 21, 2019 at 20:15 | review | First posts | |||
| Sep 21, 2019 at 20:44 | |||||
| Sep 21, 2019 at 20:11 | history | answered | Yellow Sky | CC BY-SA 4.0 |
