User contributions
- 06:09, 20 June 2023 (diff | hist) . . (+1) . . 2740: Square Packing (→updated "left" to "right" for the Gensane solution description)
- 06:58, 29 November 2017 (diff | hist) . . (-1) . . 1919: Interstellar Asteroid (→Explanation)
- 06:57, 29 November 2017 (diff | hist) . . (+149) . . 1919: Interstellar Asteroid (→Explanation)
- 00:55, 29 November 2017 (diff | hist) . . (+103) . . 1921: The Moon and the Great Wall (→Explanation)