User contributions
- 01:52, 2 June 2020 (diff | hist) . . (+50) . . 208: Regular Expressions (→Explanation)
- 23:10, 5 February 2020 (diff | hist) . . (+338) . . 2264: Satellite (Add explanation of graveyard orbits)
- 06:00, 20 July 2018 (diff | hist) . . (+24) . . 2022: Sports Champions (→Explanation)