Hi Ywaz,
I've been trying to figure out how to best use Cooper's relationship for declination. In the article Position of the Sun it is reported as:
even if in Cooper's original paper (The absorption of radiation in solar stills, 1969) is:
In particular, I was wondering what N=0 meant. What instant does it represent? In this article it's written N=0 is midnight UTC between December 31st and January 1st. In Cooper's original paper is only written: "convenient approximate relationship for solar declination in terms of the day of the year n (i.e. 1st or 200th)".
I personally tried to do some calculations and I think the best thing would be to consider N=1 as the noon UTC on January 1st. I believe this minimizes the error. I would like to ask you why you changed your mind in making versions of article Declination in November 2011?
Also, however, don't you think that instead of "overestimates", "underestimates" should go? You could have a look here https://www.pveducation.org/pvcdrom/properties-of-sunlight/declination-angle
Sam X (talk) 23:09, 23 May 2020 (UTC)
Interesting. If true, please say so in the article to explain the "metal", in place of the current statement; but you'd need to cite a source. For now, I revert you. Dicklyon (talk) 16:58, 16 December 2008 (UTC)
Silicon is the most abundant metal on Earth and being in crystalline form does not change that. Maybe the article should say in all the various places that the technology has largely changed from a good conducting metal like aluminum to the poorly conducting metal polysilicon. I added a discussion topic on the article and hopefully someone will fix it in all the appropriate places. I was just browsing and that error stood out. Ywaz (talk) 00:58, 17 December 2008 (UTC)
Welcome to Wikipedia. Although everyone is welcome to make constructive contributions to Wikipedia, at least one of your recent edits, such as the one you made to EEStor, did not appear to be constructive and has been automatically reverted by ClueBot. Please use the sandbox for any test edits you would like to make, and take a look at the welcome page to learn more about contributing to this encyclopedia. If you believe there has been a mistake and would like to report a false positive, please report it here and then remove this warning from your talk page. If your edit was not vandalism, please feel free to make your edit again after reporting it. The following is the log entry regarding this warning: EEStor was changed by Ywaz (u) (t) deleting 14553 characters on 2009-02-12T13:21:50+00:00 . Thank you. ClueBot (talk) 13:21, 12 February 2009 (UTC)
Welcome to Wikipedia. We welcome and appreciate your contributions, including your edits to Johannes Kepler, but we cannot accept original research. Original research also encompasses novel, unpublished syntheses of previously published material. Please be prepared to cite a reliable source for all of your information. Thank you. There is an extensive literature on this passage that points out the distinction between Kepler's attraction between "cognate bodies" which is not universal gravitation and that his attraction is limited to a "sphere of influence" and does not extend indefinitely (as Newton's does). SteveMcCluskey (talk) 18:23, 2 December 2010 (UTC)
Please do not add original research or novel syntheses of previously published material to our articles as you apparently did to Astronomia nova. Please cite a reliable source for all of your information. Thank you. Your addition of material that was recently deleted from Kepler as original research shows a lack of concern for consensus. SteveMcCluskey (talk) 04:47, 5 December 2010 (UTC)
Hi Ywaz:
I've just written a few paragraphs on the talk:Heliostat page about the edits you have recently made to the article. You asked what aspects I say are erroneous. I gave some examples.
DOwenWilliams (talk) 22:15, 15 November 2011 (UTC)
Hi Ywaz:
I'm not sure that I agree with you about switching or not switching to cosine notation in the declination formula. If you consider its origin to be my Sunalign stuff, then it was definitely in cosine form back then.
However.... No big deal.
You may have seen that I have made an addition to the Equation of time page to include "our" kind of calculation.
DOwenWilliams (talk) 02:30, 22 November 2011 (UTC)
I saw the edits you made today on the Equation of Time page. I guess most of them are matters of taste. I'll live with most of them. However, I have changed a couple of things back:
I replaced the nint(C) expression, which you had substituted with a bit of computer code. I imagine many people will use calculators, not computers. INT is not implemented on any calculator I have seen. However, anyone who is using a calculator will be able to subtract the correct nint(C) just by looking at the numbers.
I replaced a bit of explanation about the problem with Arctangent. Most non-mathematicians do not realize that it has many values.
I also noticed that you shifted the graph, saying you had improved its position. On my screen, it definitely looked better as I had left it. I'm not sure which position would be better on most people's screens.
You changed the title of my Equation of Time calculation, but you did not change the link I had put on the Declination page that points to it. I've fixed it.
You cut out a lot of little bits of explanation, presumably to save space. But how important is it to save space in Wikipedia?
DOwenWilliams (talk) 19:58, 1 December 2011 (UTC)
"Nint" is rare. That's why I explained it in the text. Explanation is generally better than hoping that readers will somehow figure something out on their own.
Incidentally, I moved that graph into the middle of the screen, and expanded it so the differences between the two curves are easily visible. How does it now look on your screen?
DOwenWilliams (talk) 16:21, 2 December 2011 (UTC)
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Please note that per WP:CIRCULAR, Wikipedia articles are not considered reliable sources and should not be used in citations. Thank you. DonIago (talk) 19:59, 22 October 2014 (UTC)
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Hi, please see this section for this edit. The issue has been raised a long time, but nothing really happened. I am sorry to trim and ultimately remove what you wrote and would like to insert it back, but it does not help in the lead. Maybe in a limitations section? Please input when possible on the talk page. Thanks, M∧Ŝc2ħεИτlk 16:52, 10 January 2016 (UTC)
You currently appear to be engaged in an edit war according to the reverts you have made on Finasteride. Users are expected to collaborate with others, to avoid editing disruptively, and to try to reach a consensus rather than repeatedly undoing other users' edits once it is known that there is a disagreement.
Please be particularly aware that Wikipedia's policy on edit warring states:
If you find yourself in an editing dispute, use the article's talk page to discuss controversial changes; work towards a version that represents consensus among editors. You can post a request for help at an appropriate noticeboard or seek dispute resolution. In some cases it may be appropriate to request temporary page protection. If you engage in an edit war, you may be blocked from editing. Jytdog (talk) 18:05, 19 April 2016 (UTC)
About your comment here - the edit note was wrong, and the deletion was wrong. A lot of the medical literature is behind paywalls. Please don't delete sourced content because you can't access the source. See WP:PAYWALL. Thanks Jytdog (talk) 19:27, 17 September 2016 (UTC)
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