Timeline for are ducted fans better than turbines generating vaccum?
Current License: CC BY-SA 4.0
2 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 13 at 17:05 | vote | accept | RHR | ||
| May 3 at 23:51 | history | answered | david | CC BY-SA 4.0 |