User contributions
- 02:51, 19 March 2024 (diff | hist) . . (-132) . . User talk:42.book.addict
- 07:16, 2 January 2024 (diff | hist) . . (+11) . . 2875: 2024 (→Explanation)
- 23:14, 31 May 2023 (diff | hist) . . (+26) . . 2783: Ruling Out (Undo revision 314686 by 172.71.211.13 (talk) not true, for example, merging galaxies usually have multiple quasars, neither of which is near the center)
- 07:40, 12 May 2023 (diff | hist) . . (+66) . . 2466: In Your Classroom
- 19:31, 25 April 2023 (diff | hist) . . (+7) . . 2767: Recipe Relativity (→Explanation: qualify)