User talk:John R. Brews

Welcome!

Welcome to Citizendium as a new author! We're very glad you've joined us. We hope you will contribute boldly and well. Here are pointers for a quick start. You'll probably also want to know how to get started as an author. Just look at Getting Started for other helpful "startup" pages, and at CZ:Home for a complete listing of help and other community pages. If you wish, just ask me to create a "personal sandbox" for you where you can test out editing and writing articles. If you need help to get going, it is a good idea to join our discussion forums. That's where we discuss policy, proposals or technical problems. You can ask any constable for help, too. Just put a note on their "talk" page. Again, welcome and thank you! We appreciate your willingness to share your expertise, and we hope to see you begin actively editing and contributing to Citizendium. Milton Beychok 19:37, 24 November 2010 (UTC)

Welcome aboard!

I just want to give you a warm personal welcome, wish you a Happy Thanksgiving, and extend my hope that you enjoy yourself here at Citizendium. Click on any of these workgroups to see what articles already exist in them:

• Engineering Workgroup
• Physics Workgroup
• Mathematics Workgroup
• Earth Sciences Workgroup
• Astronomy Workgroup

Of the five Workgroups listed above, the Earth Sciences and Astronomy Workgroups have the least number of existing articles. Any articles you could contribute to those two Workgroups would be much appreciated ... as well as expanding and/or improving any of the exiting articles in those Workgroups.

Please call upon me if you have any questions or need any help. Milton Beychok 19:58, 24 November 2010 (UTC)

Just wanted to add my welcome. You've been very productive already. We always appreciate enthusiasm!. --Joe Quick 21:30, 30 November 2010 (UTC)

About help with Free space

John, this is in regard to your request for help with Free space. Most of our physics articles were written by Paul Wormer, a retired university professor in the Netherlands. Paul has left Citizendium for reasons I won't go into ... but he was very knowledgeable and very helpful. If you were to email him and ask for help as a fellow retired professor, he may be willing to help. I will email you his email address as he may not wish to have it openly public.

You might also ask for help from these users: Daniel Mietchen ( a physics editor), Anthony Sebastian (a physics author) and Johan A. Förberg (a physics author). Milton Beychok 17:55, 25 November 2010 (UTC)

Article renamed

The article has been renamed as you requested. Happy Thanksgiving! Milton Beychok 18:30, 25 November 2010 (UTC)

Comment by Boris Tsirelson

John, I assume that you have Free space (electromagnetism) on your watchlist. If not, there is a comment by BorisTsirelson on the article's Talk page. Regards, Milton Beychok 17:05, 30 November 2010 (UTC)

About Magnetization

It is really nice to see a newcomer contributing as well as you have been since joining us. Keep it up!

Just a few formatting comments about the Magnetization article:

• I added the {{subpages}} template to the top of the Main article edit page (as well as each of the subpages), which is always required when creating a new article in the namespace.
• I added missing info to the Metadata template. In particular, I added Physics as a category (i.e., cat1) because the Metadata template must always have at least one category specified. I also filled in the abc= "Magnetization" as the choice for alphabetization in the Physics workgoup listing and upgraded the status from 3 to 2 because your article is more than just a stub.
• I added some links to the Related Articles subpage and used the {{r|Article name}} template on the links you added as well as on my links because use of that template is required to automatically display the definitions as well.

I hope that I am not overwhelming you with these formatting tidbits ... but they will become second nature for you in a few weeks. Once again, keep it up! Milton Beychok 00:27, 10 December 2010 (UTC)

Hi Milton: Thanks for these notes. I can refer to them to help learn the ropes. John R. Brews 05:40, 10 December 2010 (UTC)

Some questions

Hi, John: Was my response (on my Talk page) to your quest about importing WP articles clear ? If not, please let me know.

Also, did you create that drawing that you placed in the Magnetic field article? Please let me know. If you did create it, then I will create the required credit line for you. If you did not create it, then you must document your permission or your rationale for uploading ii with the license that you selected. Regards, Milton Beychok 06:43, 15 December 2010 (UTC)

Same question about the drawing you placed in the Magnetization article ... because it also need either a credit line. Milton Beychok 06:51, 15 December 2010 (UTC)

Hi Milton: Yes, both these figures are original with myself. When I uploaded them, I thought I had made that clear. John R. Brews 13:14, 15 December 2010 (UTC)

Personal sandbox

Many of us use a personal sandbox in which to create new articles or make major changes to an existing article. That way we can work on the articles until we have polished and re-polished them to our hearts content before uploading our work into the namespace as a new article or into an existing article. For example, I have multiple personal sandboxes. Using a personal sandbox has 3 advantages:

• No one bothers you or makes edits while you are still working on an article.
• You can invite selected people to review and critique your work (if you wish to have that done) before you upload it into the namespace.
• It avoids the new article having a lengthy History page that includes the very many changes/rewordings made during the development of the article.

Once you have uploaded your work into the namespace, then you simply delete everything from your sandbox and it is ready for use again on another article.

If you would like a sandbox, I can easily create one for you. Just let me know. Milton Beychok 07:14, 15 December 2010 (UTC)

If a sandbox is a preferable way to set up an article, so be it. Please make one for me.

Thanks, John R. Brews 13:16, 15 December 2010 (UTC)

John, there is now a link at the upper left of your user page labeled My sandbox. Just click on it and you will be taken to your sandbox. Enjoy! Milton Beychok 17:25, 15 December 2010 (UTC)

Appreciation

Just to say how clear and elegant I find your work. My first degree was in Maths, a long time back, and I've a son now studying physics and maths before going to University next year, so I've been trying to do some catch-up on the physics I've forgotten so he won't embarrass me too much. Gareth Leng 21:10, 26 December 2010 (UTC)

Thanks for the kind remarks, especially appreciated following my recent departure from WP. Hope you find some of the discussion and the references here good for catch up. I find it wearying to try to find good discussions using Google books; some good sources are just not available on line. John R. Brews 05:33, 27 December 2010 (UTC)

The MOSFET article

John, I agree that the MOSFET article fits into the Engineering workgroup ... but I don't see how it fits into the Chemistry workgroup. Could you please explain why it fits into the Chemistry group? Should it also be in the Computers workgroup perhaps?

Milt

Hi Milt: Well, its a stretch unless you want to go off into the actual fabrication of the device. I don't think I'm responsible for making the choice of Chemistry. John R. Brews 05:30, 3 January 2011 (UTC)

Okay. I went ahead and deleted the Chemistry workgroup from the metadata template and added the Computers workgroup. Milton Beychok 05:51, 3 January 2011 (UTC)

Specifying of cat1, cat2 or cat3 in the Metadata template

John, the categories specified in the Metadata template (i.e., cat1, cat2 or cat3) must be one of the workgroups such as Physics, Chemistry, Engineering, .... etc. There is no Electromagnetism workgroup so it cannot be specified as a category on the Metadata template. Therefore, I deleted it from that template.

If you click on the Citizendium logo at the upper left of this or any other page, it will take you to the Citizendium "Welcome" page ("our Home page"). The top of that page includes the titles and icons for the 6 major groups of workgroups, namely, Natural Sciences, Social Sciences, Humanities, Arts, Applied Arts and Sciences, and Recreation. Click on any one of them, and that will take you to a complete listing of all our current workgroups within those 6 major groups.

For example, Natural Sciences includes these 6 workgroups: Astronomy, Biology, Chemistry, Earth Sciences, Mathematics and Physics.

As another example, Applied Arts and Sciences includes 13 workgroups, one of which is the Engineering workgroup.

We know that the workgroups are too broad in some cases and that something needs to be done to correct that situation. Our newly elected Editorial Council will probably be tackling that subject in the near future. Be that as it may, at the moment we must live with our current workgroups.

I hope that this is helpful. Regards, Milton Beychok 05:11, 4 December 2010 (UTC)

Your forum account

Hi John. Milt mentioned that you had applied for a forum account and were waiting. Just wanted to make sure that you knew it was approved yesterday. If you have trouble signing in, let me know. D. Matt Innis 01:51, 4 January 2011 (UTC)

Now you can help me, please

John, please look at the recent postings at Talk:National Institute of Standards and Technology‎ concerning perhaps the need to update the National Institute of Standards and Technology‎ article, and then update the article as may be needed. It appears that the section about the NIST Laboratories and the section about their budget needs updating. Thanks in advance, Milton Beychok 23:38, 8 January 2011 (UTC)

Milt: I've updated the lab and program descriptions and done some reorganization. I haven't looked at the budget issues. John R. Brews 16:38, 9 January 2011 (UTC)

I think I'm done here. John R. Brews 16:54, 9 January 2011 (UTC)

What drawing program do you use?

John, I very much like the looks of your images. What drawing program do you use, and how long did it take to learn how to use it? Milton Beychok 21:39, 9 January 2011 (UTC)

Milt: I use a kludge approach: I draw the diagrams in Excel 2007 and then copy them and paste them as .png files in Microsoft Paint. Excel 2007 provides a lot more control over the line widths and colors than earlier versions. At this point I find this method very easy, but I've been doing it for a while so I just don't remember my learning curve. John R. Brews 22:09, 9 January 2011 (UTC)

For circuit diagrams, I use Klunky paste the circuit in Excel and label it there. John R. Brews 22:19, 9 January 2011 (UTC)

About the 6 articles you have written as subpages to your user page. I think they are all ready to be created as CZ articles.

John you have links on your user page to a number of articles that you've written as subpages of your user page:

• Centrifugal force
• Centripetal force
• Coriolis force
• Tensor ( this is the one in your "Sandbox" )
• Schottky diode (this is the one in your "Draft article" subpage)
• Vacuum partial (this is the one in your "Sample "subpage)

John, if you want other people to collaborate on any of the above, then you should move them into the article namespace rather than keeping them in your user namespace. From a brief scan, they all look at least like good status 2 articles (i.e., what we call "developing articles"). As long as they stay in your user namespace, they will not draw any edits or additions or much notice from other Citizens.

If you need help getting those articles into the article namespace along with their associated cluster of six subpages (i.e., the "Talk" subpage, the "definition" subpage, the "Related articles"subpage, the "Bibliography" subpage, the "External links" subpage and the "Metadata" subpage), just let me know and I will help you over the next few days. I really think that they are all ready to be turned into articles. Milton Beychok 08:44, 16 February 2011 (UTC)

Hi Milt: Thanks for the offer. I have made Centrifugal force, Centripetal force, and Schottky diode into articles. The others need more work, maybe a lot more.

I have drawn upon my contributions to WP for diagrams, and have noted that in their notes. I'd take it that is not a problem. The articles Centrifugal force, Centripetal force also draw from scattered contributions on WP, as indicated on their Talk pages, along with some added text and rearrangement. I hope that will pass muster as well. John R. Brews 14:59, 16 February 2011 (UTC)

Yes, I think that the articles Centrifugal force and Centripetal force will pass muster. You should read the recently passed motion by our Editprial Council about importation from WP ... see [1]. Milton Beychok 18:02, 18 February 2011 (UTC)

Physics editorship

John, we really need another Physics Editor. Have you decided whether you wish to become an Editor? Please let me know. Milton Beychok 18:02, 18 February 2011 (UTC)

Hi Milt: Thanks for the offer. At the moment I'd rather exert myself in writing articles. As the number of editors increases and controversy builds, I may regret a lower position in the hierarchy, so I'm not altogether happy about this decision. But for the moment I'll decline. John R. Brews 19:53, 18 February 2011 (UTC)

Deletion requests

John, I saw your post on the forum concerning deletion of pages. Please see this page. It should explain what to do, but if you have any probelms, do let me know so we can make it clearer if necessary. Also, be sure to put your reason in the appropriate place so that it saves us time when we are evaluating the request. Thanks for all your hard work! D. Matt Innis 21:52, 5 March 2011 (UTC)

Thanks for the help; I've implemented these directions as I understand them. John R. Brews 22:05, 5 March 2011 (UTC)

Got it! Good job. D. Matt Innis 02:43, 6 March 2011 (UTC)

Your images are amazingly good!

John, I have been on the verge of advising you to create an images subpage of your user page for some time. Now, you have done it yourself ... and I just want to say how amazingly good your images are!

I also noticed your recent request for information on how to re-name or move an article. If you still need help, just let me know. Milton Beychok 19:06, 6 March 2011 (UTC)

Hi Milt: Thanks for the encouragement. I'm sure I'll need your help from time to time.

Although I have used your suggestion to make a sandbox draft of articles, I seem to have an irresistable urge to post these things too early: if I really want to post a finished article, I'd have to let them incubate for a month first, and I seemingly cannot resist doing it sooner.

Thanks for your interest. John R. Brews 19:28, 6 March 2011 (UTC)

John, what tools do you use to create your images? Howard C. Berkowitz 17:15, 25 March 2011 (UTC)

Howard: I've got an idiosyncratic approach, probably shared by no-one. I use Excel 2007 to draw the pictures and save them as PNG files using Microsoft paint. For circuit diagrams I draw the circuit using Klunky and pasting the result into Excel for labeling. Using Excel has a learning curve, and it's not as good as Matlab for fancy shading and 3-D effects. However, I've got Excel, and Matlab I don't. John R. Brews 17:23, 25 March 2011 (UTC)

Idiosyncratic is right! Nevertheless, Klunky looks very useful. Howard C. Berkowitz 18:35, 25 March 2011 (UTC)

Financial Report as of March 15, 2011

Please read our Financial Report as of March 15, 2001 for complete details on our financial history and our current financial situation. If you have any questions, please ask them on CZ Talk:Donate. Milton Beychok 00:20, 18 March 2011 (UTC)

Semiconductor applications

Would you be willing to guide (e.g., structuring the articles) where semiconductor applications should go? At the moment, I'm having to do some simple circuit design, but I haven't done it in years. As long as I have to look up how to configure a zener diode and resistor to protect an analog to digital converter from overvoltage, I could write that up. Obviously basic things.

I am also open to discussions of appropriate burnt offerings to the little people inside the semiconductor. If I can get my circuit to work, I'll suffer through selenium rectifier smoke. (yecch). Howard C. Berkowitz 17:11, 25 March 2011 (UTC)

Howard: It sounds like you have some very practical matters in mind, which I can admire. However, as you might have guessed, I am an engineer by accident only, and my heart is really in the clouds (not the selenium smoke type!). John R. Brews 17:26, 25 March 2011 (UTC)

No, you aren't in the cloud. You are in the solid state of consciousness, rather like the shamanistic state of consciousness, as opposed to ordinary reality. Perhaps, some day, I will become enlightened, but I still am of the opinion that describing that which happens in a tunnel diode is a matter for theologians and philosophers.

Now, I do participate in the culture wars, at times, with electronic warfare (seriously, I think that's a pretty decent article and comment is welcome). As I remember, connecting a 1.5 volt battery across a 1N921 noise diode gives a little white noise generator that, placed upon a TV set, makes it inoperable. This led to quiet in the dorm.

I'm not sure I am ready to write articles for applications of the components, although I might try. Perhaps, since we do occasionally have subpages with software code, perhaps circuits might be appropriate. I might well write something on how to monitor contact closures, but I'm not quite sure where to put it. Using a number of COTS A-to-D converters to monitor closed loop voltage (or absence thereof), one typically wants some way of voltage limiting. My application is monitoring sensors on the 12 volt (and sometimes up to 32) volt systems of fishing vessels, but a voltage greater than 5.0 will fry the sensor. Hence, a zener seemed a good idea. Howard C. Berkowitz 18:43, 25 March 2011 (UTC)

Good figure that you added to Chemical reaction

John, that is a very nice figure that you added to the lede of Chemical reaction ... thanks. However, it contains the terms ΔG* and ΔG which are not explicitly defined or explained anywhere. An encyclopedia article really should not assume that all readers are going to know what those terms are. Would it be possible to define them in the image caption ... or to revise the figure to include a definition? I think that would be helpful. - Milton Beychok 19:16, 5 April 2011 (UTC)

Hi Milt:

As you know, G refers to the Gibbs free energy for which there is no article at the moment. I could link to Entropy_(thermodynamics)#Relation_to_Gibbs_free_energy_and_enthalpy but there little more than a definition there. Perhaps you have some advice here? I could try to summarize this or this. John R. Brews 23:04, 5 April 2011 (UTC)

I took a shot at this; please improve upon it. John R. Brews 02:20, 6 April 2011 (UTC)

John, not all readers of encyclopedia's are knowledgeable about thermodynamics and Gibbs free energy ... and this article was intended to be an encyclopedic article rather than a thermodynamics textbook. What I would like to see is some way to make your drawing coincide better with the drawing in the next section about exothermic and endothermic reactions.

In that drawing of mine, I purposely used the phrases "Activation energy" instead of ΔG* in order to avoid using thermodynamic terminology. I also purposely used "Energy absorbed" and "Energy released" rather than ΔG for the same reason. In other words, the not-so-knowledgeable reader is more likely to understand "activation energy", "energy absorbed" and "energy released" than than the symbols ΔG* or ΔG ... and yet those three phases retain the technical integrity of the article.

As matters stand now, the not-so-knowledgeable reader will be all the more confused by having two images, fairly close to each other, using different ways of expressing essentially the same thing. If you would simply change ΔG* in your drawing to "activation energy" and ΔG to "energy released", the two drawings would then coincide and eliminate any confusion. It would also eliminate the need for much of the explanation of Gibbs free energy that you added to the lede. In order to make those simple changes in your drawing, you may have to increase the drawing size a bit and perhaps reduce the text font size a bit ... but that should be fairly easy to do. After all, I suspect that your primary reason for adding your drawing was simply to emphasize the fact that chemical reaction paths may include intermediates rather than to purposely introduce the thermodynamic term of Gibbs free energy.

I apologize for being so long-winded. Milton Beychok 03:48, 6 April 2011 (UTC)

Hi Milt: Of course I can change the labels on the figure to ΔE. I don't think that is necessarily the best approach for a few reasons.

One is that virtually every textbook on the subject uses the Gibbs energy, so there is a good chance that a reader interested in this article has seen this diagram using the Gibbs energy. A second reason is that the Gibbs energy involves a good deal more than the usual physicists view of energy as potential energy and its release. As I gather (and I am open to correction on this point) the idea of using the Gibbs energy is to treat not just a single molecular event, but an ensemble of molecules in a chemical soup. That context is dropped if the Gibbs energy is not mentioned.

So I don't think we have the final answer on this one. We need to make some noises about this discussion being a bit wider than watching two balls of putty smack into each other and stick together. John R. Brews 06:09, 6 April 2011 (UTC)

Milt: I have changed the figure and modified the text to describe a bit more about what the figure shows without invoking the Gibbs energy. See what you think. John R. Brews 15:04, 6 April 2011 (UTC)

Thanks, very much John ... you have solved our problem very well indeed, and I do appreciate it. Regards, Milt.

Did you see my response about [[Metre(uni) on my talk page?

John, I hope that you've seen my response about those edits regarding GPS, LORAN and LIDAR. Please see my Talk page. I haven't the faintest idea how those edits occurred. I certainly had no intention to make such edits. Milton Beychok 23:30, 9 April 2011 (UTC)