User contributions
- 16:29, 4 September 2021 (diff | hist) . . (+539) . . 2506: Projecting (→Jokes: Fixed some grammatical errors; wrote sixth paragraph.)
- 17:42, 2 September 2021 (diff | hist) . . (+23) . . 2484: H-alpha (→Explanation)
- 23:59, 21 August 2021 (diff | hist) . . (-31) . . 762: Analogies (→Explanation)