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Jul 21, 2023 at 21:49 comment added Ed V See also: physics.stackexchange.com/a/768678/313612.
Aug 31, 2022 at 1:21 comment added Ed V As @trula said, it is collisional excitation, as in the flame and hollow cathode lamp I show here: chemistry.stackexchange.com/a/164168/79678. Same for simple neon bulbs and signs, etc.
Aug 31, 2022 at 1:04 history bumped CommunityBot This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
Mar 8, 2020 at 20:16 answer added trula timeline score: 1
Mar 8, 2020 at 18:50 review First posts
Mar 8, 2020 at 19:26
Mar 8, 2020 at 18:45 history asked Sasandu Garusinghe CC BY-SA 4.0