Template:Did you know nominations/Hyperbolic spiral
- The following is an archived discussion of the DYK nomination of the article below. Please do not modify this page. Subsequent comments should be made on the appropriate discussion page (such as this nomination's talk page, the article's talk page or Wikipedia talk:Did you know), unless there is consensus to re-open the discussion at this page. No further edits should be made to this page.
The result was: promoted by Bruxton talk 15:07, 7 January 2024 (UTC)
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Hyperbolic spiral
The spirals in this photo of a spiral stair are hyperbolic
- ... that the spirals in photos of spiral staircases (pictured) are hyperbolic? Source: Hammer, https://doi.org/10.1007%2F978-3-319-47373-4_15 (paywalled)
- ALT1: ... that the starting blocks of 200m and 400m footraces are positioned along hyperbolic spirals? Source: Haines, https://www.jstor.org/stable/3617399 (paywalled but probably available through The Wikipedia Library)
- Reviewed: Template:Did you know nominations/Hank Aaron State Trail and Template:Did you know nominations/California mission project (double QPQ for heavy backlog)
Improved to Good Article status by David Eppstein (talk). Self-nominated at 03:57, 26 December 2023 (UTC). Post-promotion hook changes for this nom will be logged at Template talk:Did you know nominations/Hyperbolic spiral; consider watching this nomination, if it is successful, until the hook appears on the Main Page.
Date, size, hooks, copyvio spotcheck, etc. all GTG. --Piotr Konieczny aka Prokonsul Piotrus| reply here 12:03, 2 January 2024 (UTC)
- @David Eppstein: AGF on the sources for the hook. ALT0 works with the article and it an interesting image. I am removing the link to staircases so that people do not click on it instead of the article. Also I added the staircase location to the image at commons. Bruxton (talk) 15:05, 7 January 2024 (UTC)