Talk:Trouton–Noble experiment

message: Its the same on all the aether pages. Historians such as myself think aether theories should be properly documented as a matter of historical interest. Against that point of view, you have bored Physics undergraduates, who insist any aether page should be a valid modern Ph.D research topic, with no reference more than 30 years old.  Personally, I don't see any valid reason to seek to erase from history, a long tradition of intellectual thought. Right or wrong, people belived it to be true, and for that reason, it is interesting enough. But my type seems to get outvoted. The aether is 'irrational' and all mention of it must be deleted from the history books, or the dark ages will be upon us once again! Timharwoodx 17:15, 26 Mar 2005 (UTC)
thread_title:  Aether editorial disputes 

message: Could someone explain the following which appears to be related to the Trouton-Noble experiment?
Consider a rod with positive and negative charges of equal magnitude at its ends.  If this is moving with constant velocity relative to a supposed aether, the positive charge generates a magnetic field at the negative charge and, since this is in motion, it thereby experiences a force.  Similarly, the positive charge experiences a magnetic force due to the negative charge.  The torque due to the force pair is such as to align the rod perpendicular to the direction of motion.  (According to Chapter 1 of Michel Janssen’s thesis cited towards the end of the article, this is in agreement with Larmor, Lorentz, and Laue; the article itself suggests that there should be a tendency for the rod to align itself with the velocity.)
In the relativistic view, the ‘magnetic’ torque remains.  In order to give a null torque, we should require an equal and opposite ‘electric’ torque.  However, the direction of the electric field due to a uniformly moving charge points directly away from or towards it (see, for example, http://en.wikipedia.org/wiki/Relativistic_electromagnetism), in other words, parallel to the rod.  The ‘electric’ forces therefore produce no torque.
IanHH 16:07, 19 August 2007 (UTC)
thread_title:  Moving Dipole 

message: Franklin’s paper on “The lack of rotation in the Trouton-Noble experiment” (http://front.math.ucdavis.edu/0603.7110) demonstrates that, while the forces on the moving charges are not parallel to the rod, the accelerations they would produce were the rod to be removed are.  This arises from the fact that, in special relativity, force and acceleration are not in general parallel.  Franklin argues that the same effect explains the null result of Trouton-Noble.  I would urge that someone more relativity-savvy than myself should include this argument in the article.
IanHH (talk) 15:33, 12 March 2008 (UTC)
thread_title:  Moving Dipole - The Answer 

message: The reference cited for the Cornille material is a correspondence in the non-reputable Galilean Electrodynamics. Even if it had been a paper in the publication, it's status would be highly questionable, because of that publication's poor reputation, but it wasn't even a paper, it was a correspondence. Anyone can write a letter to the editor. This is not a peer reviewed writing. It was an obvious work of a physics crank, not verifiable from any reputable source per Wikipedia rules, and therefore does not belong in the article. It isn't mentioned in any other reputable secondary source on the experiment, so Wikipedia should not be the first to present it as if it was reputable. That would constitute original research.63.24.98.95 (talk) 18:45, 26 October 2008 (UTC)
thread_title: Removal of Non-Reputable and Un-Verifiable "Controversy"

message: Hello fellow Wikipedians,
I have just added archive links to  on Trouton–Noble experiment. Please take a moment to review my edit. If necessary, add  after the link to keep me from modifying it. Alternatively, you can add  to keep me off the page altogether. I made the following changes:
*Added archive http://web.archive.org/web/20160126140229/http://www.mpiwg-berlin.mpg.de/litserv/diss/janssen_diss/intro.pdf to http://www.mpiwg-berlin.mpg.de/litserv/diss/janssen_diss/intro.pdf
*Added archive http://web.archive.org/web/20160109222701/http://www.mpiwg-berlin.mpg.de/litserv/diss/janssen_diss/introI.pdf to http://www.mpiwg-berlin.mpg.de/litserv/diss/janssen_diss/introI.pdf
*Added archive http://web.archive.org/web/20160127112516/http://www.mpiwg-berlin.mpg.de/litserv/diss/janssen_diss/introII.pdf to http://www.mpiwg-berlin.mpg.de/litserv/diss/janssen_diss/introII.pdf
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thread_title:  External links modified