Timeline for How to build a telescope using gravitational lensing?
Current License: CC BY-SA 3.0
11 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 2, 2019 at 18:59 | vote | accept | Mike Nichols | ||
| S Aug 17, 2018 at 17:34 | history | bounty ended | HDE 226868♦ | ||
| S Aug 17, 2018 at 17:34 | history | notice removed | HDE 226868♦ | ||
| Aug 10, 2018 at 20:36 | answer | added | realityChemist | timeline score: 3 | |
| Aug 10, 2018 at 20:05 | comment | added | Schwern | "This civilization spans its home galaxy and wields vast energies capable of moving and shaping matter on the scale of solar masses." Sounds more like a Type III civilization. More to the point, how does this civilization communicate and coordinate across 100,000 light years? Are we to assume FTL communications and travel? Or simply a civilization that operates on galactic time scales? See Matt O'Dowd's Are Galactic Civilizations Possible? for these issues and more (spoiler: no). | |
| Aug 10, 2018 at 16:24 | comment | added | Kyle Zabala | I think they're not merely a type 2 civilization. They're already spanning their home galaxy, and they can now move stars around. Their rating should be around 2.4 or above. Maybe 2.6 if they can control supermassive blackholes aside from stars. | |
| S Aug 10, 2018 at 14:53 | history | bounty started | HDE 226868♦ | ||
| S Aug 10, 2018 at 14:53 | history | notice added | HDE 226868♦ | Draw attention | |
| Oct 11, 2016 at 8:40 | answer | added | John Dallman | timeline score: 5 | |
| Oct 10, 2016 at 23:37 | comment | added | MolbOrg | to focus the maximum amount of light onto a single point using gravity Gravity lenses do not work that way, they focus things in to axis, not a point but a line. For K2 there i not much advances to do that for goal u describe, they can achieve them easier ways. Moving BH is not so easy for K2 energy wise, if they haven't discovered something efficient for those goals, ftl like, and that have less connection for K123, but for technological advances. | |
| Oct 10, 2016 at 15:07 | history | asked | Mike Nichols | CC BY-SA 3.0 |