User talk:Dan Engineer 3

Welcome!
Hello, Dan Engineer 3, and welcome to Wikipedia! Thank you for your contributions. I hope you like the place and decide to stay. Here are a few links to pages you might find helpful: Please remember to sign your messages on talk pages by typing four tildes ( ~ ); this will automatically insert your username and the date. If you need help, check out Questions, ask me on my talk page, or ask your question on this page and then place  before the question. Again, welcome! BracketBot (talk) 14:51, 24 April 2014 (UTC)
 * Getting started
 * Introduction to Wikipedia
 * The five pillars of Wikipedia
 * How to edit a page and How to develop articles
 * How to create your first article
 * Simplified Manual of Style

April 2014
Hello, I'm BracketBot. I have automatically detected that [//en.wikipedia.org/w/index.php?diff=605612312 your edit] to Process duct work may have broken the syntax by modifying 1 ""s and 1 "[]"s. If you have, don't worry: just [ edit the page] again to fix it. If I misunderstood what happened, or if you have any questions, you can leave a message on [//en.wikipedia.org/w/index.php?action=edit&preload=User:A930913/BBpreload&editintro=User:A930913/BBeditintro&minor=&title=User_talk:A930913&preloadtitle=BracketBot%20–%20&section=new my operator's talk page].
 * List of unpaired brackets remaining on the page:

It's OK to remove this message. Also, to stop receiving these messages, follow these opt-out instructions. Thanks, BracketBot (talk) 14:51, 24 April 2014 (UTC)
 * are lower than the allowable stresses for straight duct by a K factor = 1.65/(h 2/3power) where  h = t (duct) * R (elbow) /  r(duct)*r (duct). This equation, or similar equations is found in Tubular Steel Structures section

Replaceable fair use File:Duct Shipping Spider.jpg
Thanks for uploading File:Duct Shipping Spider.jpg. I noticed that this file is being used under a claim of fair use. However, I think that the way it is being used fails the first non-free content criterion. This criterion states that files used under claims of fair use may have no free equivalent; in other words, if the file could be adequately covered by a freely-licensed file or by text alone, then it may not be used on Wikipedia. If you believe this file is not replaceable, please:


 * 1) Go to the file description page and add the text   below the original replaceable fair use template, replacing   with a short explanation of why the file is not replaceable.
 * 2) On the file discussion page, write a full explanation of why you believe the file is not replaceable.

Alternatively, you can also choose to replace this non-free media item by finding freely licensed media of the same subject, requesting that the copyright holder release this (or similar) media under a free license, or by creating new media yourself (for example, by taking your own photograph of the subject).

If you have uploaded other non-free media, consider checking that you have specified how these media fully satisfy our non-free content criteria. You can find a list of description pages you have edited by clicking on [ this link]. Note that even if you follow steps 1 and 2 above, non-free media which could be replaced by freely licensed alternatives will be deleted 2 days after this notification (7 days if uploaded before 13 July 2006), per the non-free content policy. If you have any questions, please ask them at the Media copyright questions page. Thank you. Fut.Perf. ☼ 14:37, 23 May 2014 (UTC)

Ductwork PROD
The PROD was removed with no improvement whatsoever. Nothing changed. For eight years this has been a wonderful article, but it's not encyclopedic. It is the original research of what appears to be one individual without as much as a single reference.