Talk:Willebrord Snellius

	Biography portal This article is within the scope of WikiProject Biography, a collaborative effort to create, develop and organize Wikipedia's articles about people. All interested editors are invited to join the project and contribute to the discussion. For instructions on how to use this banner, please refer to the documentation.BiographyWikipedia:WikiProject BiographyTemplate:WikiProject Biographybiography articles
	This article is supported by the science and academia work group.

‹See TfM›

Physics: Biographies Mid‑importance

	Physics portal This article is within the scope of WikiProject Physics, a collaborative effort to improve the coverage of Physics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.PhysicsWikipedia:WikiProject PhysicsTemplate:WikiProject Physicsphysics articles
Mid	This article has been rated as Mid-importance on the project's importance scale.
	This article is supported by Biographies Taskforce.

Astronomy Low‑importance

	Astronomy portal This article is within the scope of WikiProject Astronomy, which collaborates on articles related to Astronomy on Wikipedia.AstronomyWikipedia:WikiProject AstronomyTemplate:WikiProject AstronomyAstronomy articles
Low	This article has been rated as Low-importance on the project's importance scale.

Untitled

Two issues: First, the 1911 Britannica and some other sources give Snell's birth year as 1591, but others (including the 1999 Britannica and the St. Andrews math history website) have 1580. Anyone have a primary source?

HI EVERY BODY —Preceding unsigned comment added by 69.94.167.202 (talk) 18:07, 25 January 2010 (UTC)[reply]

Second, the variant Snellitjs, apparently taken from the "SNELLITJS" on the 1911 Britannica web version, seems to be a scanner error for Snellius, as the 1999 Britannica has it. Where "Snellitis" comes from I have no idea.

Snellitis may also be a scanner and OCR error 'u' may be read as 'ti'.

Snel or Snell?

I have seen several sources that use the variant spelling, Snel. For an example, see Waves and Grains, by Mark Silverman, p.13. It appears that Snell comes from an anglicization of his latinized moniker, Snellius, while his family name was actually Snel. Are there any other points of reference for this difference?

Grady ITS SNELL! —Preceding unsigned comment added by 74.69.44.181 (talk) 02:08, 9 April 2009 (UTC)[reply]

Here is an example, in nederlands, that appears to support the idea that his given name was Snel:

http://lerweb.khlim.be/~infav/breking/26snellius.htm

that link does not work and it is a Belgian site, not NL. MH 11:06, 11 June 2006 (UTC)[reply]

Currently, both "Snel" and "Snell" are used in Dutch for his name, though "Snellius" is most common. Before 1811, names had no official spelling in the Netherlands, and probably both variant spellings were used, even by Snellius himself. In the current Dutch spelling rules, there are no native words ending in a double "l", but even then, names do not have to follow the rules. -- Eugene van der Pijll 23:44, 3 May 2005 (UTC)[reply]

RE The above -- I emailed a Dutch friend - he said the guy's original name was:

   Snel van Royen (Snel's law)

With one 'l'. But he says that in those days they also gave themselves Latin-type names (e.g. "Snellius Law") which resulted in an additional 'l'. And when he was referred to as Willebrord Snell, they sometimes kept the second 'l'. So (a) this topic should be updated to mention this and (b) if you search for "Snel van Royen" you don't find this page. Max

How familiar is your Dutch friend with pre-1811 Dutch spelling?

As I said above: his original name was Snel or Snell; both versions are equivalent. However, I think I found an extract of his marriage record [1] (I hope the link works), which implies that the name he used in real life was "Snellius". -- Eugene van der Pijll 13:20, 7 April 2006 (UTC)[reply]

His name was Snell, with -ll. See Dutch Wikipedia http://nl.wikipedia.org/wiki/Willebrord_Snell MH 11:06, 11 June 2006 (UTC)[reply]

Dutch Wikipedia has since changed to Snel with one l. –jacobolus (t) 18:26, 27 July 2022 (UTC)[reply]

Snell and Pi

Do we have a source for the statement that Snell produced a "new method" for calculating pi? The (few) sources I've read simply have him in the list of those who used the polygon method to squeeze out a few more digits. John D. Goulden (talk) 18:52, 3 July 2012 (UTC)[reply]

External links modified

Hello fellow Wikipedians,

I have just modified one external link on Willebrord Snellius. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

Added archive https://web.archive.org/web/20110722200119/http://www.ncg.knaw.nl/Publicaties/Groen/pdf/14Haasbroek.pdf to http://www.ncg.knaw.nl/Publicaties/Groen/pdf/14Haasbroek.pdf

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 13:14, 28 November 2017 (UTC)[reply]

Split section on triangulation

that topic is notable enough and the section is long enough. fgnievinski (talk) 05:34, 2 May 2021 (UTC)[reply]