User talk:KaiKemmann

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We're so glad you're here! WP jcm Words are cool 00:04, 10 May 2008 (UTC)

Acrow prop
I see that you've gone ahead and merged this, despite there being very clear disagreement as to the virtues of merging it. Also the refs in there, from Acrow prop still don't support this new name of "Jack post". Andy Dingley (talk) 13:52, 25 January 2015 (UTC)


 * Sorry about this, Andy. I clearly have to take the blame for not looking at the talk pages before merging the two articles. Both articles being quite short and marked as "stubs" I did not expect any content on the talk page at all. But now I certainly regret not having checked this.
 * I did look at the Google-search results and more than a million entries for Jack post versus around 80.000 for Acrow prop. My understanding was that an Acrow prop is a subtype of Jack post but I am not a native speaker and admittedly do not have a full grasp of the subtle differences between American and British terminology. But I thought I'd do Acrow prop justice by moving all content and references and making Acrow prop a paragraph of its own.
 * Now I cannot find the talk page of the former Jack post article so I assume there was no content yet and the software moved the Acrow prop content over automatically.
 * I appreciate that you did not reverse the merger right away. This would most likely have happened in the German Wikipedia which I mostly work on. But I naturally would not object I you decide that the merger should better be undone. KaiKemmann (talk) 17:21, 25 January 2015 (UTC)

Sewage farm
In response to your recent question on my talk page about the preference for arid climates: Agricultural application of an engineering mass balance is called a water balance. The system is defined as the land growing crops. Water inputs to the system are sewage plus precipitation. Water outputs from the system are evaporation into the atmosphere, percolation into the soil, conversion to plant mass, transpiration from the plants to the atmosphere, and surface runoff. From a sanitary engineering perspective, optimum system performance is obtained when surface runoff is minimized, because runoff will carry sewage pathogens and pollutants into natural waterways. Residential sewage production (and input into the system) is expected to be relatively constant and percolation capacity is similarly constant unless the ground freezes; but plant growth, transpiration, and evaporation will vary with temperature and humidity. Arid climates are preferred because precipitation of sufficient intensity to cause runoff will cause pollution of the natural watercourses receiving that runoff. Arid climates seldom receive enough precipitation to cause runoff, so an engineer can measure evaporation, percolation, and plant uptake to determine the amount of land required to use the expected rate of sewage production. Thewellman (talk) 15:53, 25 October 2016 (UTC)
 * I have a few comments about the changes you made and those you have proposed for subject article:


 * I question the change from The practice is best adapted to warm, arid climates... to The practice is common in warm, arid climates... The former meant of all places it might be used, it would be most satisfactory in warm, arid places.  The latter means sewage farming is used in a significant number of warm, arid places.  I have no data to support the latter meaning.
 * I question the linking of utilization of nutrients to conversion of solids to humus. I believe these processes may operate independently.
 * It is important to keep reference citations associated with appropriate text. There are several ways to do this.  Some editors place a reference citation at the conclusion of each sentence.  I prefer to place a reference citation at the end of each paragraph unless the paragraph includes information from more than one reference, in which case I would place additional reference citations within the paragraph to clarify the sources.  By breaking up my paragraph structure into separate paragraphs, you have detached some information from its reference citation creating ambiguity about the source of the stated information.  It has been my experience future editors may add citation needed templates and/or delete information without clear linkage to reference citations.
 * Wikipedia requires reference citations to secondary sources. Your suggestion to incorporate our talk page discussions into article text is inconsistent with that requirement, unless you can find secondary sources supporting the points discussed.  As other editors have mentioned, sewage farming is presently regarded as an obsolete technology in most of the developed world, and such sources are difficult to find.  As you search for such sources, be careful to avoid implications from locations retaining the name sewage farm where land previously used for that practice has been converted to a modern sewage treatment facility. Thewellman (talk) 14:26, 27 October 2016 (UTC)


 * Thank you, Thewellman. Again I will transfer our conversation to the sewage farm talk page and answer there to keep everything at one place for further reference. --KaiKemmann (talk) 10:21, 29 October 2016 (UTC)

Dab page style
Thank you for creating the dab page at Water channel. There are a few things that make dabs different from articles, summarized on WP:DDD; in particular, the ambiguous target page should be the first and only link in each entry, and it should be at the start of the entry if possible. Thanks! — swpb T 15:55, 29 November 2016 (UTC)

Hello, I'm The Channel of Random. I wanted to let you know that one or more of your recent contributions to Sleight of hand have been undone because they did not appear constructive. If you would like to experiment, please use the sandbox. If you think a mistake was made, or if you have any questions, you can leave me a message on my talk page. Thanks. The Channel of Random (talk) 00:29, 7 February 2017 (UTC)

Buttered cats
I'm curious about sources you may have found for this comment you made.

I can personally attest that 1 meter is sufficient height for a cat to right itself in midair. My friend's cat also didn't seem to mind being dropped on a mattress a couple of times, but had no problem landing on its feet if dropped with its back initially facing downward. ~Anachronist (talk) 23:49, 4 March 2020 (UTC)


 * Thanks for your question, Anachronist.
 * I found the 3 metres specification in several German sources. None of them scientific though. Two examples are and
 * The German sources usually say: when falling from below three meters there is not time for the cat to complete the whole manoeuvre (involving a complex set of successive movements).
 * Falling from 30 cm probably gives the cat just enough time to rapidly turn its front feet towards the ground while its back part is still twisted upwards.
 * I would welcome it if you would want to add this distinction to the article. Maybe also in "Cat righting reflex" where I did hide this statement from sight as well. (The outcome will certainly be better if you do it as I am not a native speaker.)
 * thank you for your effort,
 * KaiKemmann (talk) 13:34, 10 March 2020 (UTC)

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Central force motion
You have not explained your edit. Xx236 (talk) 08:50, 7 August 2023 (UTC) If you want to delete the redirect, there is probably a specific procedure.Xx236 (talk) 08:52, 7 August 2023 (UTC)


 * Sorry for the late reply User:Xx236. It is not possible to establish Wikidata-links from redirects. The redirect has to be deleted to do so. I probably fell asleep during the procedure last time ... Thank you for noticing. The correct link to the German Wikipedia is now set here.
 * KaiKemmann (talk) 08:57, 25 August 2023 (UTC)

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Speedy deletion nomination of Water-source heat pump


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