Talk:Ismaël Bullialdus

	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.

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.

France Low‑importance

	France portal This article is within the scope of WikiProject France, a collaborative effort to improve the coverage of France 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.FranceWikipedia:WikiProject FranceTemplate:WikiProject FranceFrance articles
Low	This article has been rated as Low-importance on the project's importance scale.

Libraries Low‑importance

	This article is within the scope of WikiProject Libraries, a collaborative effort to improve the coverage of Libraries 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.LibrariesWikipedia:WikiProject LibrariesTemplate:WikiProject LibrariesLibraries articles
Low	This article has been rated as Low-importance on the project's importance scale.

History of Science Low‑importance

	History of science portal This article is part of the History of Science WikiProject, an attempt to improve and organize the history of science content on Wikipedia. If you would like to participate, you can edit the article attached to this page, or visit the project page, where you can join the project and/or contribute to the discussion. You can also help with the History of Science Collaboration of the Month.History of ScienceWikipedia:WikiProject History of ScienceTemplate:WikiProject History of Sciencehistory of science articles
Low	This article has been rated as Low-importance on the project's importance scale.

WikiProject class rating

This article was automatically assessed because at least one article was rated and this bot brought all the other ratings up to at least that level. BetacommandBot 03:44, 27 August 2007 (UTC)[reply]

Newton's praise of Bullialdus

Can somebody verify that Newton refers to Bullialdus? I can't find it in books.google.com copies of "Principia". TedHuntington 02:29, 31 August 2007 (UTC)[reply]

I couldn't find it either. There is a reference to Bullialdus by Newton on Book 3 Phenomenon 4, but he praises him for his work with tables. There is no mention of giving priority to Bullialdus for inverse square law. I think if no one can confirm it, the reference to Newton's praise should be deleted. Zeyn1 (talk) 19:05, 17 April 2008 (UTC)[reply]

Even the assertion that Newton "praises him for his tables" goes a little too far. The quotation provided only shows that Newton had a favourable attitude to Bullialdus's determination of the sizes of the planets' orbits. Bullialdus's theory of the motions of the planets was not as good as Kepler's, and by the time Newton wrote the Principia, Bullialdus's tables had been generally recognised not sufficiently accurate (see, for example, page 176 of Curtis Wilson's article, Predictive Astronomy, in Planetary Astronomy from the Renaissance to the rise of astrophysics, Part A: Tycho Brahe to Newton). I shall amend the article accordingly.

The original claim in the article, that Newton praised Bullialdus for the inverse-square law and the accuracy of his tables, appears to have come from the the MacTutor biography of the latter. However, since an electronic search of the Principia itself—which I have also performed—uncovers no favourable comments by Newton other than the one cited by Zeyn1, I don't believe the MacTutor biography should be used as justification for including this stronger claim in the article.

—David Wilson (talk · cont) 15:47, 5 April 2009 (UTC)[reply]

External links modified

Hello fellow Wikipedians,

I have just modified one external link on Ismaël Bullialdus. 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/20161130062658/http://www-gap.dcs.st-and.ac.uk/~history/Biographies/Boulliau.html to http://www-gap.dcs.st-and.ac.uk/~history/Biographies/Boulliau.html

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) 13:18, 17 November 2017 (UTC)[reply]