User contributions
- 08:29, 2 May 2024 (diff | hist) . . (+5) . . 2926: Doppler Effect (→Explanation: Siren tones aren't usually steady - it's the predictable repeatability that matters.)
- 10:48, 10 April 2024 (diff | hist) . . (-28) . . Talk:2343: Mathematical Symbol Fight (More accurate pre-sign.) (current)
- 17:03, 19 March 2024 (diff | hist) . . (-2) . . Talk:893: 65 Years