Talk:Speed of light
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 | There is a request, submitted by ScientistBuilder (talk), for an audio version of this article to be created. For further information, see WikiProject Spoken Wikipedia. The rationale behind the request is: The speed of light is central to physics fields including the Big Bang Theory, special relativity, general relativity, spectroscopy, optics, as well as real world applications such as signal processing and GPS networks. |
This article should make it clear that a) light doesn't always travel and the speed of light and b) the speed of light isn't "the speed of light"
c is the cosmic speed limit that nothing that surpass. Light just travels at c in a vacuum. Serendipodous 23:14, 2 July 2025 (UTC)
- The first six words in the article are "The speed of light in vacuum, ". Johnjbarton (talk) 23:21, 2 July 2025 (UTC)
- My point is that c isn't the speed of light. c is a broader concept. It is the geomentric foundation of the universe. It determines how space warps. Serendipodous 23:24, 2 July 2025 (UTC)
- If you have a challenge to specific content based on sources, please let us know. Johnjbarton (talk) 23:34, 2 July 2025 (UTC)
- My point is that c isn't the speed of light. c is a broader concept. It is the geomentric foundation of the universe. It determines how space warps. Serendipodous 23:24, 2 July 2025 (UTC)
- Very long topic name (29 words). ~2026-27224-4 (talk) 17:12, 13 January 2026 (UTC)
- and 142 letters! ~2026-93778-9 (talk) 14:55, 18 February 2026 (UTC)
Semi-protected edit request on 25 October 2025
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last line of: https://en.wikipedia.org/wiki/Speed_of_light#%22Luminiferous_aether%22
Change: After Maxwell theory unified light .. To: After Maxwell's theory unified light .. Hawrpurr (talk) 22:33, 25 October 2025 (UTC)
Done Thanks. Johnjbarton (talk) 22:46, 25 October 2025 (UTC)
Edit request : One more digit for travel time for a foot
The article currently lists one foot as 1.0 ns. With one more digit (1.02) it would be clear that there is no relation between the definition of a foot and the speed of light. There are other entries in the table that already have two digits after the dot, so its not a matter of uniformity. ~2025-41491-35 (talk) 14:41, 18 December 2025 (UTC)
Semi-protected edit request on 13 January 2026
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There is a gap underneath the infobox in this article's source. Please remove it to make the page reader friendly. ~2026-27224-4 (talk) 17:10, 13 January 2026 (UTC)
- Done As far as I can tell this issue is solely due to the infobox layout. For different browser widths different results will be seen. I moved the navbar down FWIW. Johnjbarton (talk) 17:50, 13 January 2026 (UTC)
- what does FWIW mean? ~2026-27224-4 (talk) 16:13, 14 January 2026 (UTC)
- FWIW means "For what its worth". Johnjbarton (talk) 18:11, 14 January 2026 (UTC)
- what does FWIW mean? ~2026-27224-4 (talk) 16:13, 14 January 2026 (UTC)
"Speed of electricity/light" listed at Redirects for discussion
The redirect Speed of electricity/light has been listed at redirects for discussion to determine whether its use and function meets the redirect guidelines. Readers of this page are welcome to comment on this redirect at Wikipedia:Redirects for discussion/Log/2026 January 16 § Speed of electricity/light until a consensus is reached. –LaundryPizza03 (dc̄) 21:15, 16 January 2026 (UTC)
- It got deleted. ~2026-93778-9 (talk) 14:56, 18 February 2026 (UTC)