Talk:Pinch (plasma physics)

message: I think that perhaps Z-pinch/Theta pinch fusion devices need thier own page.
:The Z-pinch machine does, not sure about thete pinch devices. --Iantresman 19:19, 13 September 2006 (UTC)
replies: text: Z-pinch already does have its own page...? Mgmirkin 23:04, 12 October 2006 (UTC)
thread_title: Untitled

message: I've added a few External Links to Teslamania and a Tesla "down under" Australian page that relate to using electricity to shrink coins and to "pinch" or crush cans. They seem to go into a bit of the practical concerns and theory behind it. Not peer reviewed, per se. But, nonetheless decent resources worth a read. Not like anyone professionally studies can crushing or coin shrinking anyway. More of a hobbyist type thing, methinks. *wink* 
Hope you guys find it useful and it's not too off topic. Seeing as can pinching was discussed in the article as an example of a practical use or demonstration of "pinching" something electromagnetically. Mgmirkin 23:04, 12 October 2006 (UTC)
thread_title: EM Pinch used in shrinking/deforming

message: Just wondering if Pinch instability from the Plasma Physics article request page was synonymous with this topic. If so, perhaps we should put it into the 'also known as' section and set up a redirect from Pinch instability, as well as make the mention of the topic from the Instability page (plasma instabilities section) into a WP link to this article, for internal WP consistency (trying to see if folks can get decent articles for the various plasma instabilities listed on that page, so the items listed can link to said articles). I just don't know instabilities well enough to know for certain they're the same, but I suspect they are. (Going on the assumption that Bennett pinch and Pinch instability are synonymous.) Mgmirkin 19:34, 19 November 2006 (UTC)
replies: text: No. The pinch effect does not necessarily involve an instability of any sort. Of course, if you create a pinch, it may be unstable in a number of ways, like the sausage instability or the kink instability. You might want to put both topics in the same article, but a simple redirect is not enough. --Art Carlson 19:46, 19 November 2006 (UTC)
thread_title: Pinch instability?

message: *The Bennett relation and the Generalized Bennett Relation, are both described in the article.
*The Carlqvist relation is derived from the Generalized Bennett Relation (as was described in the article), and is verifiable. --Iantresman 20:02, 14 January 2007 (UTC)
thread_title: Carlqvist relation

message: The article contains a couple of overly long quotes.  Are they copyright violations?  Cardamon 12:10, 15 January 2007 (UTC)
thread_title: Overly long quotes

message: A fusion pinch is obviously also a plasma pinch. The entire content of Pinch (magnetic fusion) is also appropriate to Pinch (plasma physics). Both articles are short enough that the merged article will be a reasonable length (and is not likely to grow excessively). The only reason I could think of to have a separate article for fusion aspects would be if we included a lot of information on the construction and operation of experiments and proposed reactors. Considering that pinches are now "also ran" configurations, I don't think we should write such an article. --Art Carlson 10:42, 17 January 2007 (UTC)
replies: text: At this stage, I think that makes sense. In the future, the articles may well grow in length as certain aspects of detailed, in which a later separation might make sense. --Iantresman 10:53, 17 January 2007 (UTC)

text: Z-pinch looks somewhat different, more about the machine than the pinch? --Iantresman 11:45, 17 January 2007 (UTC)
replies: text: What's it got? A bit on the physical mechanism and some history, especially the evolution of the idea with the fusion energy program. That would fit right into the first two sections here. Any engineering details can be put in the article on the Z machine. --Art Carlson 12:53, 17 January 2007 (UTC)
replies: text: Makes sense.  I would suggest adding some merge tags to the articles, just to see whether anyone else can add anything. --Iantresman 13:08, 17 January 2007 (UTC)

text: Merging from Pinch (magnetic fusion) is fine with me. Cardamon 22:44, 18 January 2007 (UTC)
thread_title:  Proposed merger from "Pinch (magnetic fusion)" to "Pinch (plasma physics)" 

message: Nice image of the crushed lightning rod, though it seems to have misaligned some of the other images. eg. the Bennett relation chart is no longer near the appropriate section. Perhaps the lightning image should go as it is quite common, or some of the others should be made smaller? --82.84.83.94 11:22, 30 August 2007 (UTC)
thread_title: Images

message: I think it is not. The main reason that a lightning channel remains thin is that most energy is produced in its center. The hotter the plasma, the higher the ionization degree, the higher the conductivity and therefore the higher the dissipated power. Therefore the center of the channel remains hot and the channel gets cooler on the outside.
I am sure magnetic forces play a role, but they are not the root cause of the thin lightning channels as is suggested in the article (especially under the lightning image).Sandeman684 (talk) 09:55, 23 June 2009 (UTC)
replies: text: Speaking as a plasma physicist, that sounds plausible, but I don't know an easy way to answer the question definitively. Do we have any sources, one way or the other? --Art Carlson (talk) 07:50, 24 June 2009 (UTC)
thread_title:  Is pinching really important in lightning? 

message: This article says that the IEEE logo is symbolic of the right hand rule used in Electrical Engineering coordinate systems: http://www.ewh.ieee.org/r1/newsletter/branding.htm  
I am not sure where the reference to the pinch comes from, and the link under reference 25 goes to IEEE's generic history portal without specifically linking to any pinch reference.  Can the reference be cleaned up? 70.123.130.83 (talk) 04:59, 3 February 2010 (UTC)
thread_title:  IEEE Logo? 

message: I have no opinion on the viability of using plasma pinches to crush aluminum cans, but none of the references point to valid sources.  I think either valid sources should be used or the section should be dropped.  Without adequate references, a suspicion of vandalism taints the section. modify 07:01, 17 June 2012 (UTC)
thread_title:  Crushing cans 

message: I am changing this, the madison machine is a a reverse field pinch in a toroidal shape... they are the same thing?  or is the madison machine a reverse field pinch in a toroidal shape? 2602:306:CCDD:E740:A9:89EA:7CD:6DB5 (talk) 15:02, 27 March 2015 (UTC)
thread_title:  I thought toroidal pinches were reverse field pinches ? 

message: Hello fellow Wikipedians,
I have just modified one external link on Pinch (plasma physics). 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/20110715125631/http://www.english.pstproducts.com/index_htm_files/English%20White%20Paper%20by%20PSTproducts.pdf to http://www.english.pstproducts.com/index_htm_files/English%20White%20Paper%20by%20PSTproducts.pdf
When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.
Cheers.—InternetArchiveBot (Report bug) 08:50, 25 January 2018 (UTC)
thread_title:  External links modified (January 2018) 

message: > Many high-voltage electronics enthusiasts make their own crude electromagnetic forming devices.
In what respect are these devices "crude"? Who decides what is crude and what isn't? 'crude' could be removed with no loss to the article.
203.13.3.94 (talk) 01:35, 4 March 2019 (UTC)
thread_title:  Can crushing - NPV? 

message: Is the Northrup mentioned in the History section Edwin Fitch Northrup?150.227.15.253 (talk) 12:59, 27 October 2022 (UTC)
thread_title:  Northrup