Talk:Biot-Savart law

From Wikipedia, the free encyclopedia

WikiProject Physics This article is within the scope of WikiProject Physics, which collaborates on articles related to physics.
Start This article has been rated as Start-Class on the assessment scale.
High This article is on a subject of High importance within physics.

This article has been rated but has no comments. If appropriate, please review the article and leave comments here to identify the strengths and weaknesses of the article and what work it will need.

Listed on Wikipedia:Votes for deletion Feb 20 to Feb 26 2004, redirected. Discussion:

  • Biot-Savart law - text has nothing to do with the Biot-Savart law]] Fuzheado 23:18, 20 Feb 2004 (UTC)
    • I've redirected it to Biot-Savart's Law. Maximus Rex 23:42, 20 Feb 2004 (UTC)
    • I switched them the other way, since the preferred usage is tends to be without the apostrophe. -- Decumanus 08:57, 21 Feb 2004 (UTC)
    • List on redirects for deletion as copy/paste move which needs to be fixed. Anthony DiPierro 16:22, 21 Feb 2004 (UTC)

-- Graham :) 21:08, 26 Feb 2004 (UTC)


In fact, the use of the apostrophe is clearly wrong. It implies that there was a single person named 'Biot-Savart', whereas the two names in fact belong to two different people. I'm going to fix all pages that link to the bad spelling. --Smack 00:40, 15 Nov 2004 (UTC)

Contents

[edit] Laplace's Law

I was looking for this version of Laplace's law: http://hyperphysics.phy-astr.gsu.edu/Hbase/ptens.html#lap Can someone either fix the redirection, maybe add a disambiguation, or explain where this should correctly fit?

[edit] first sentence; more general form?

The Biot-Savart law describes the magnetic field set up by a steady current density.

This is true, but as later noted in the article Biot-Savart is used extensively in aerodynamics. In fact it has been the lynchpin of all vortex models of flows around bodies for the past 70 years. Given its prominence in aerodynamics, shouldn't the first sentence of this article be changed to more generally describe application of Biot-Savart?

I made an attempt to modify the intro as you suggested. Feel free to improve it, expand it, or revert and start over. -- Metacomet 01:38, 27 December 2005 (UTC)

Just thought someone should know, I searched on Laplace Law, and got the following link: http://en.wikipedia.org/wiki/Laplace%27s_Law however, the article i got was Biot-Savart Law... I see no obvious connection between them. //Wikipedia reader ;)

Really, there are two different uses of the name "Biot-Savart law." One is the strict use in the E&M sense of finding the B field from a current, the other is the basic math of inverting a curl. Inverting the curl is all you are doing in finding B from J, and it's also all you are doing to find v given the vorticity in a fluid. You could also use it to find A (the vector potential) from B, up to gauge, or whatever. I think it makes more sense to separate out the core mathematical concept in the Biot-Savart law, somewhere on this pagePetwil 06:01, 8 September 2006 (UTC)

[edit] pronunciation

how to pronounce "Biot-Savart"?

-- As they are French, probably the correct is without trailing "t", but this is only a guess. The rest I suppose is pronounced phonetically. -- Mtodorov 69 14:24, 4 May 2006 (UTC)

I tried doing phonetic but I can't get the unicode to print right. Bee-oh, followed by sa like sa in sand but a bit more like "ah" as in "ah I see", art like the English word art but without the t, and with the r pronounced like a French r - fricative, swallowed r on the roof of your mouth, not the front of your mouth. But that won't do for the entry, eh? I dunno how to do the French phonetic unicode.... :)Petwil 06:24, 8 September 2006 (UTC)

[edit] Factors of 2

...are easily lost in this subject. I've 'corrected' to my understanding (Batchelor, 'Fluid Dynamics', eqn 2.6.4) - if you think I'm wrong, I'll need a reference. Linuxlad 13:20, 22 January 2007 (UTC)

[edit] geneneral statement first?

Could we see a general statement of this law in terms of vector analysis first, and then its applications to electromagnetics and to aerodynamics afterwards? Michael Hardy 02:12, 13 March 2007 (UTC)