Talk:Litre

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Anti-American bias[edit]

It's fine for this article to be in British English for historical reasons, but it's not ok for it to exhibit unsourced and false prejudice. The spelling "liter" is more, not less, common than "litre". More individual countries may opt for the Franco-British spelling but Texas alone has more people than Australia; Alabama has more people than New Zealand; and the US prints more books and has more webpages as well.

There's a way to phrase the idea to get the same point across with less opprobrium, but "liter" is not "less common". — LlywelynII 02:32, 13 June 2017 (UTC)[reply]

Only Wikipedia editors get confused by "er" vs. "re", or missing/extra "u" or "i" in words. People who actually read the articles take about 300 milliseconds to recognize the alternative, and then get on with whatever they really came here to read about. More people speak English in India than in England, anyway. --Wtshymanski (talk) 04:56, 13 June 2017 (UTC)[reply]

In my humble opinion, the best answer to that question was given 12 years ago: "On the other hand, one could wonder whether American English really deserves to have different spellings for measures which Americans refuse to adopt. ;) - toh 16:20, 3 October 2005 (UTC)" Quite charming! --217.89.43.122 (talk) 13:38, 27 March 2018 (UTC) "true" -a person — Preceding unsigned comment added by 70.168.214.70 (talk) 13:38, 23 March 2021 (UTC)[reply]

You mean pro-American, as twice in the opening paragraphs we are pointlessly informed that one country spells it wrong.

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SI prefixes table - more often used terms in bold[edit]

How was it decided which units were bolded to indicate they were more often used? I've never heard or seen hectolitre, decilitre, centilitre or microlitre in common usage but have heard and seen kilolitre, megalitre and gigalitre in common usage. GK1 (talk) 00:08, 25 January 2018 (UTC)[reply]

Would Americans say, "I gotta yottaliter - that's a lotta liters"? Mike Spathaky (talk) 22:06, 13 June 2018 (UTC)[reply]

The litre is not a metric unit[edit]

Discuss. Dondervogel 2 (talk) 16:40, 10 January 2020 (UTC)[reply]

@Dondervogel 2: "metric unit", as used in this article, redirects to "metric system", suggesting a metric unit is a unit of the metric system, and in that article it says of the metric system: "It is now known as the International System of Units (SI). Given that we know that the "litre" is a "non-SI unit", it follows that it's a non-metric-system unit too. Or is the "metric system" article wrong about that? -- DeFacto (talk). 18:06, 10 January 2020 (UTC)[reply]
The metric system article also says Metric system may also refer to other systems of related base and derived units defined before the middle of the 20th century, some of which are still in limited use today. -Arch dude (talk) 19:30, 10 January 2020 (UTC)[reply]
Very confusing, yes. -- DeFacto (talk). 20:02, 10 January 2020 (UTC)[reply]
@DeFacto: That might be the case now, but you miss an important detail. The link I used was not to Metric system but to Outline of the metric system. That second article explicitly includes the litre in its list of metric units. Why? Because the litre is a metric unit. Period. Dondervogel 2 (talk) 20:42, 10 January 2020 (UTC)[reply]
@Dondervogel 2: that's an annoying WP:EGG link though, and the first thing I did after clicking that was to find and click the first link to where the text led me to believe I would have been taken - to metric system. The fact is, the articles are confusing, contradictory and unhelpful, and need tidying. -- DeFacto (talk). 20:57, 10 January 2020 (UTC)[reply]
@DeFacto: Here we agree. The links are indeed contradictory, and that is because the article metric system conflates metric units with SI units. In reality, the set of SI units is a small subset of all metric units. The errors in that article need fixing but here we are discussing the litre, which remains a metric unit, regardless of what other articles might say about it. Dondervogel 2 (talk) 21:05, 10 January 2020 (UTC)[reply]
@Dondervogel 2: yes, fair comment - I agree. -- DeFacto (talk). 21:14, 10 January 2020 (UTC)[reply]
Great. I'm glad we found common ground. Dondervogel 2 (talk) 10:20, 11 January 2020 (UTC)[reply]
@Dondervogel 2: IMO a litre is a metric unit in the sense that it is/was a formal unit of an older system commonly known as "the metric system" in its time. All we need to do in this article is to make sure we identify the relationship of the litre to the SI, and we do that. The confusion is a matter of which tense , "is" or "was", should be used in an encyclopedic article, and that's messy. See MOS:TENSE. -Arch dude (talk) 19:19, 10 January 2020 (UTC)[reply]
@Dondervogel 2: I modified the wording of the hatnote, which was the very first prose in the article, to no longer call it "the metric unit". -Arch dude (talk) 19:40, 10 January 2020 (UTC)[reply]

What a mess![edit]

It seems we have 4 closely related articles:

In addition we have metric units, which redirects to International system of units. What we need is one article to describe the concept of a general metric unit, which could include some history and would include the litre. And a second one on the SI, which would exclude the litre. The other articles seem redundant to me. Dondervogel 2 (talk) 16:17, 11 January 2020 (UTC)[reply]

I just edited Metric units so that it redirects to Outline of the metric system because that's the only one I could find that makes a distinction between metric units (which include the litre) and SI units (which do not). Dondervogel 2 (talk) 16:26, 11 January 2020 (UTC)[reply]
I agree it's a mess, and there's "Introduction to the metric system" too. It'll be a big job to try and fix it though. Where do we start? Probably not here, in the "litre" article. :) -- DeFacto (talk). 18:01, 11 January 2020 (UTC)[reply]
I agree this is not the most obvious place, but I chose to make the point here to avoid a parallel discussion. How about we first agree (here) where best to take it and then move the discussion to that location? Dondervogel 2 (talk) 18:40, 11 January 2020 (UTC)[reply]
@Arch dude: pinging Arch dude. Dondervogel 2 (talk) 18:42, 11 January 2020 (UTC)[reply]
The three of us might be able to bring some order to this chaos, but I'm a fairly haphazard editor with other interests. Perhaps we should propose a structure and then take it to the appropriate(?) Wikiproject to get more input? My own inclination is to make the SI article the master article, and point to the other articles from its brief overview subsections ("metric systems", "history", etc.) since GIPM specifically mentions litre, it gets included there, but only to say that it's a non-SI unit. -Arch dude (talk) 19:19, 11 January 2020 (UTC)[reply]
That makes sense. How about we post a message at International system of units, making a case for creating a new article metric units and deleting Outline of the metric system, Metric system and Introduction to the metric system. The contents of the 3 deleted articles could be merged into the remaining 3. Dondervogel 2 (talk) 20:32, 11 January 2020 (UTC)[reply]
@Dondervogel 2: that sounds like a step in the right direction to me, as there doesn't seem to be a suitable (active) Wikiproject to take this to. -- DeFacto (talk). 07:06, 13 January 2020 (UTC)[reply]
Alternative suggestion: Might Wikipedia:WikiProject_Physics be a better place to post our message? They already have a discussion going on merging Technical atmosphere with Kilogram-force per square centimetre. Dondervogel 2 (talk) 00:06, 17 January 2020 (UTC)[reply]
That looks like an appropriate, and article-independent, place to put it. I'd support that. -- DeFacto (talk). 07:11, 17 January 2020 (UTC)[reply]

Preparing comment to be posted at WP:Physics[edit]

@Arch dude: @DeFacto: Thoughts or suggestions for improvement? Dondervogel 2 (talk) 09:08, 18 January 2020 (UTC)[reply]

Background[edit]

A group of editors working at Litre has identified the following closely related articles.

We feel there is too much duplication in these 5 articles. We also see a need for a new article Metric units. That new article could usefully include summaries of

Proposal[edit]

Support[edit]

Oppose[edit]

Comments[edit]

@Dondervogel 2: looks good to me. -- DeFacto (talk). 21:49, 18 January 2020 (UTC)[reply]
I posted the comment at WP:Physics. Dondervogel 2 (talk) 18:57, 19 January 2020 (UTC)[reply]
I've given up at WP:Physics. They either don't understand or are uninterested in the distinction between the metric system of units (arguably the SI) and the collection of all metric units (which includes the SI and many other metric units). Instead I have made a stub on my user page. Feel free to add suggestions of your own. Dondervogel 2 (talk) 12:56, 10 February 2020 (UTC)[reply]
Well done for trying. We'll just have to keep chipping away at it, and see how it goes. -- DeFacto (talk). 20:38, 10 February 2020 (UTC)[reply]
I uploaded the article from my user page to Metric units. I'm not sure about the logarithmic units though. Perhaps they belong elsewhere - depends what one understands by a "metric" unit. See what you think. Dondervogel 2 (talk) 15:04, 16 February 2020 (UTC)[reply]

What symbol should Wikipedia use for the litre?[edit]

If you have an opinion, please express it at this RFC. Dondervogel 2 (talk) 07:43, 28 February 2021 (UTC) It's acually "liter" — Preceding unsigned comment added by 70.168.214.70 (talk) 13:37, 23 March 2021 (UTC)[reply]

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