Timeline for What tech is needed to make underground building cost effective?
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 10, 2017 at 14:20 | vote | accept | DaggerOfMesogrecia | ||
| Mar 9, 2017 at 1:06 | comment | added | bright-star | The Wandering Earth is also very relevant. | |
| Mar 8, 2017 at 20:07 | history | edited | Gray Sheep | CC BY-SA 3.0 |
added 391 characters in body
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| Mar 8, 2017 at 20:01 | history | answered | Gray Sheep | CC BY-SA 3.0 |