Timeline for Speed up Venus using radiation pressure from the sun?
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 20, 2021 at 20:18 | comment | added | jdunlop | @HDE226868 - at six orders of magnitude more energy, I rather suspect "heat up" is an understatement. | |
| Jul 20, 2021 at 15:14 | comment | added | HDE 226868♦ | @loweryjk Yeah, reflection or lensing, like Corey suggested, would be interesting. With the time required inversely related to the flux or area the light is incident upon, it looks like (running the numbers) you'd need to absorb about 0.1% of the total light of the Sun and funnel it onto half of Venus in order to get the timescale down to ~300 years. On the other hand . . . the planet would certainly heat up. Although given how hellish it is already, maybe that wouldn't be a huge loss. . . | |
| Jul 20, 2021 at 14:50 | comment | added | loweryjk | Only six orders of magnitude to go in order to get that time scale down to 300yrs! We could of course gather more sunlight with reflection to increase the effectiveness and lower the time scale. | |
| Jul 20, 2021 at 8:16 | comment | added | MolbOrg | I would add earth rotation velocity as well, 0.000072 rad/sec, hm around 50 billion years, hm surprisingly fast. Also this has effect on comets asteroids, it has some wiki article but forgot the name of the effect, it more about rotating ones for which one side is emitting more IR than the another one. | |
| Jul 20, 2021 at 0:01 | comment | added | Corey | Unless we somehow lens the radiation instead of blocking half of it... then it's only 150 million years :P | |
| Jul 19, 2021 at 23:58 | history | answered | HDE 226868♦ | CC BY-SA 4.0 |