User contributions
- 18:51, 6 December 2017 (diff | hist) . . (-3) . . 1925: Self-Driving Car Milestones (→Explanation)
- 18:43, 6 December 2017 (diff | hist) . . (+414) . . 1925: Self-Driving Car Milestones
- 21:11, 6 November 2017 (diff | hist) . . (-33) . . 1912: Thermostat (→Explanation: I think my explanation is more likely and obvious)