Badge
| Revival | Answered more than 30 days later as first answer scoring 2 or more. This badge can be awarded multiple times. |
Benjamin Horowitz earned this badge |
aug 8 '11 at 3:15
Relativistic space-time geometry
| Revival | Answered more than 30 days later as first answer scoring 2 or more. This badge can be awarded multiple times. |
Benjamin Horowitz earned this badge |