Talk:Hippolyte Fizeau

	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
???	This article has not yet received a rating on the project's importance scale.

Biography: Science and Academia

	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.

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 03:41, 27 August 2007 (UTC)[reply]

Speed of electricity

What does the article mean by "speed of electricity"? Setreset (talk) 04:11, 10 June 2010 (UTC)[reply]

Exactly. That sentence makes no sense, electricity has no "speed". Maybe it means current, the rate at which electrons flow through a circuit? I'm going to remove it until somebody can clarify. —Preceding unsigned comment added by 99.233.52.194 (talk) 02:55, 10 November 2010 (UTC)[reply]

Electricity certainly does have a speed

Electricity certainly does have a speed. Ask a well-qualified electrical engineer or physicist. Whenever electrons flow in or on a conductor, there are always electromagnetic waves that flow on the outside, and that is what is meant by the "speed of electricity". Whenever there is a reasonable dielectric as an insulator on the outside, that speed is about 70 percent of the speed of light. For uninsulated wires, that speed is about 99.5 percent of the speed of light. Round that off to the speed of light.

Also, "Names inscribed on the Eiffel Tower" is VERY misleading because there is room for tens of thousands of names to be inscribed on the STEEL of the tower itself.
What they mean by the (just) 72 names are those inscribed in ceramic at the base of the Eiffel Tower. Those were once completely painted over.98.67.96.127 (talk) 21:47, 18 September 2013 (UTC)[reply]

External links modified

Hello fellow Wikipedians,

I have just modified one external link on Hippolyte Fizeau. 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/20140714144808/http://image.eastmanhouse.org/files/GEH_1952_01_05.pdf to http://image.eastmanhouse.org/files/GEH_1952_01_05.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) 07:22, 4 November 2017 (UTC)[reply]