- 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 Cwmhiraeth (talk) 06:08, 6 May 2020 (UTC)
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Qibla
Al-Khalili's table of calculated directions to Mecca
... that Muslim astronomers found accurate procedures to calculate the direction to Mecca since the ninth century (14th-century table pictured), but the results sometimes differ from the modern ones because they used inaccurate data?
Source: "Already in the 3rd/9th century Muslim scholars had derived exact solutions using the construction of Greek mathematics known as the analemma [...] or using the classical Theorem of Menelaos (King 1986, p. 83) Of course, the accuracy (judged by modern criteria) of a value of the qibla computed by a correct mathematical procedure for a particular locality depends on the accuracy of the available geographic data. [...] In Cairo, for example, the modern qibla is some 8° south of the qibla of the medieval astronomers, because they relied on a value for the longitude difference which was too small by 3°. (King 1996, p.153)
- Reviewed: Kanuni (drillship)
- Comment: 5x expansion: 7676 characters prose size before 10 April [1] becomes 39352 characters after my edits [2]. 39352 is more than 7676 * 5 (= 38380)
5x expanded by HaEr48 (talk). Self-nominated at 00:30, 11 April 2020 (UTC).
- @HaEr48: Excellent improvement to an important article. Well done. Article passed - more than 5x expanded, good sourcing (particularly those added), QPQ done. I found the hook quite difficult to follow, and then when I figured it out it didn't strike me as very interesting (sorry) as it's entirely to be expected that data quality improved over the last thousand years. How about something similar like (taken from the lede):
- ALT1: ... that Muhammad and his followers in Medina originally faced Jerusalem as their direction for prayer?
- Onceinawhile (talk) 14:42, 18 April 2020 (UTC)
- @Onceinawhile: Thank you for the review. I understand what you mean, your proposed ALT1 is fine to me. Let's go with it. HaEr48 (talk) 03:31, 19 April 2020 (UTC)
- @HaEr48: ok great. It is good to go – before I give it the tick would you like to add a picture? Onceinawhile (talk) 06:18, 19 April 2020 (UTC)
- @Onceinawhile: I can't think of an image that will add illustrative value for this hook. I could add some pictures of Jerusalem, but probably a modern-day picture will be anachronistic anyway with all the structures that didn't exist in the 7th century. HaEr48 (talk) 12:45, 19 April 2020 (UTC)
- Understood. Thanks for your excellent work here. Onceinawhile (talk) 14:56, 19 April 2020 (UTC)
- @Onceinawhile: I can't think of an image that will add illustrative value for this hook. I could add some pictures of Jerusalem, but probably a modern-day picture will be anachronistic anyway with all the structures that didn't exist in the 7th century. HaEr48 (talk) 12:45, 19 April 2020 (UTC)
- @HaEr48: ok great. It is good to go – before I give it the tick would you like to add a picture? Onceinawhile (talk) 06:18, 19 April 2020 (UTC)
- @Onceinawhile: Thank you for the review. I understand what you mean, your proposed ALT1 is fine to me. Let's go with it. HaEr48 (talk) 03:31, 19 April 2020 (UTC)
good to go. Onceinawhile (talk) 14:56, 19 April 2020 (UTC)