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This article was the subject of a Wiki Education Foundation-supported course assignment, between 7 January 2019 and 9 April 2019. Further details are available on the course page. Peer reviewers: GERVAIM.
Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 14:56, 16 January 2022 (UTC)
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Citation needed requires source addition for the main section: https://www.nationalgeographic.org/encyclopedia/atmosphere/. 2001:4452:490:6900:15FD:E0D6:766:B51B (talk) 00:00, 20 February 2022 (UTC)
Recently I wanted the mass of nitrogen in a certain mass of air, so I went to Air, which redirects to this article, to get the answer. But the article doesn't have it. It gives the molar percentages: 78.08% N2, 20.95% O2, 0.93% A, and 0.04% CO2. That means, multiplying by the molecular or atomic weights, that in 100 moles of air, there is:
78.08×28.014=2187 g N2 20.95×31.998=670.4 g O2 0.93×39.95 = 37 g A 0.04×44.009= 1.8 g CO2
for a total of 2897 g. This gives
2187 /2897 = 75.51% N2 670.4/2897 = 23.14% O2 37/2897 = 1.28% A 1.8/2897 = 0.06% CO2
Is that a routine calculation so that we can put those mass percentages into the article? That would help people like me who need the mass fraction. Or is it "original research"? I think any chemical engineer would agree that this is not research, let alone original, but rather a trivial routine calculation. Eric Kvaalen (talk) 18:25, 15 October 2022 (UTC)
Basic arithmetic, such as adding numbers, converting units, or calculating a person's age, is almost always permissible.. That's different than merging multiple sources, none of which specify the numbers he enters into the article. As an engineer, I can probably reverse-engineer his calculations to verify their accuracy, but the point is policy prohibits this. This is a long-term conflict I have with this editor - it seems that's most of what he does, fiddle with numbers and come up with conclusions which are not present in the cited material. He has made arithmetic errors in the past, producing numbers which are garbage - not only is it a waste of time to be checking them and trying to figure out where his errors are introduced, they are (again) prohibited by policy. Tarl N. (discuss) 22:49, 17 October 2022 (UTC)
Yes, indeedwas intended to mean "Yes, indeed, I assume you think I'm persecuting you."
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Add an "a" to the first picture's caption "(the Moon is visible as a crescent in the far background).[1]" Tricky879 (talk) 03:40, 9 March 2023 (UTC)
This is equivalent to redirecting "Life" to "Metabolism". Hist4ian (talk) 22:56, 11 March 2023 (UTC)
Was just perusing this entry when I noticed that in the second sentence it says "The atmosphere of Earth creates pressure, absorbs most metroids and ultraviolet solar radiation, [...]"
Metroids?
I tried to fix it but I'm still really new to wikipedia and I'm honestly not sure what it was before. I tried looking in the revisions history but didn't see any obvious troll edits. 2600:100F:A104:F7B3:9D08:4B19:9B:1844 (talk) 06:17, 19 March 2023 (UTC)
The table at Atmosphere of Earth#Tabulated properties is collapsed by default, which looks enigmatic. And the show link is in the Bulk modulus heading cell, so it's not obvious that this link applies to the whole table. Most Wikipedia editors probably know about it but many readers would not.
So for these two reasons I don't think the table should be collapsed by default. Andrewa (talk) 04:33, 15 April 2023 (UTC)
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"add some more detailed information about the presure of the air" 123iphonex (talk) 20:50, 16 April 2023 (UTC)
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The url of source 39 has changed from
http://www.centennialofflight.gov/essay/Theories_of_Flight/atmosphere/TH1G1.htm
to
https://www.centennialofflight.net/essay/Theories_of_Flight/atmosphere/TH1G1.htm
the .gov address is no longer reachable EntropyExplorer (talk) 14:26, 5 May 2023 (UTC)
Air should not be a redirect to this page. The atmosphere of Earth is merely just made of air (among other things). Also, not all air is even in the atmosphere of Earth. 2007Gtbot (talk) 03:41, 28 July 2023 (UTC)
Why is air considered to be no different than the atmosphere when the atmosphere is simply just made of air? Why do they share a page? 2007GabrielT (talk) 17:33, 30 September 2023 (UTC)
The atmosphere of Earth is the layer of gases, known collectively as air,Edward-Woodrow • talk 17:43, 30 September 2023 (UTC
why the atmosphere can only found around the earth 41.116.251.208 (talk) 13:21, 4 February 2024 (UTC)
The graphic showing the relative concentrations of gasses in the atmosphere has a significant x axis error and is likely not from a legitimate scientific source. The concentration of O appears to start increasing at about 100 km above the surface, however the ozone layer, which is where O is most concentrated, is localized to the stratosphere as indicated by the text in the article. Humanscribblebot (talk) 05:07, 20 February 2024 (UTC)
This article is currently the subject of a Wiki Education Foundation-supported course assignment, between 4 March 2024 and 2 May 2024. Further details are available on the course page. Student editor(s): Jgleana (article contribs).
— Assignment last updated by Jgleana (talk) 16:24, 4 April 2024 (UTC)