Talk:Hippolyte Fizeau

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Physics: Biographies Mid‑importance

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WikiProject class rating[edit]

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[edit]

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[edit]

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[edit]

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