Timeline for Why did high quality mirrors use aluminum coatings instead of silver?
Current License: CC BY-SA 3.0
2 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 31, 2015 at 16:31 | comment | added | ProfRob | You would be talking about space telescopes then? | |
| Jun 3, 2014 at 2:03 | history | answered | LDC3 | CC BY-SA 3.0 |