Talk:Heinrich Daniel Ruhmkorff

	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.

Untitled[edit]

I made a small clarification link to make sure that everyone knows that Bramah company was Joseph Bramah and not anything to do with Ernest Bramah Smith, Pernambuco 14:00, 11 December 2006 (UTC)[reply]

External links modified[edit]

Hello fellow Wikipedians,

I have just modified 2 external links on Heinrich Daniel Ruhmkorff. 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:

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: 18 January 2022).

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) 16:02, 7 December 2017 (UTC)[reply]

Ruhmkorff Lamp fluorescence[edit]

The statement that a red Ruhmkorff lamp excited green fluorescence from a uranium salt is dubious. Except in special cases, fluorescence can only be excited in a lower colour, i.e a longer wavelength, a lower energy than the exciting radiation. Exciting a higher energy state requires high-intensity radiation, which it is doubtful the Ruhmkorff lamp produced. The reference cited is quite explicit, but I wonder if it is accurate? Perhaps the white CO₂ Geissler was used? --D Anthony Patriarche (talk) 02:16, 7 July 2018 (UTC)[reply]

See answer at Talk:Gas-discharge lamp#Doubts about claimed fluorescence in Ruhmkorff lamps. Zaereth (talk) 22:33, 16 January 2021 (UTC)[reply]