User talk:JoKalliauer/Archive

Speedy deletion of Benutzer:JoKalliauer

A tag has been placed on Benutzer:JoKalliauer, requesting that it be speedily deleted from Wikipedia. This has been done under the criteria for speedy deletion, because it is a redirect to an article talk page, file description page, file talk page, MediaWiki page, MediaWiki talk page, category talk page, portal talk page, template talk page, help talk, user page, user talk or special page from the main/article space.

If you can fix the redirect to point to a mainspace page, please do so and remove the speedy deletion tag. However, please do not remove the speedy deletion tag unless you are fixing the redirect. If you think the redirect should be retained as is for some reason, you can request that administrators wait a while before deleting it. To do this, affix the template {{hangon}} to the page and state your reasoning on the article's talk page. Feel free to leave a note on my talk page if you have any questions about this. DASHBot (talk) 00:00, 4 November 2010 (UTC) {{User:ClueBot III/ArchiveNow}}

Help

I can't fix this file File:Headspace Inc. logo.svg, it displays on the original web page, but not in Wikipedia. There was height="auto". My bot did not like it. I tried manually and changed to height="144" width="675", still don't display. Inkscape corrupts the image. Scibus crashes. Any chance you can have a look at it. Thanks. Ronhjones  ^(Talk) 03:11, 12 November 2018 (UTC)

My edit now OK. must have been a caching issue stopping it showing. Ronhjones  ^(Talk) 04:08, 12 November 2018 (UTC)

Most likely a caching error, as said.

• first try clearing the cache of Wikipedia with ?action=purge: https://en.wikipedia.org/wiki/File:Headspace_Inc._logo.svg?action=purge
• then update your cache of your browser: de:Hilfe:Cache#Browsercache_„leeren“/aktualisieren (also it's German you might understand)
• I noticed on commons complicated Files like File:Dojikko2.3.svg, that need more time for rendering, will be rendered over night. (Maybe I'm wrong.)

 — Johannes Kalliauer - contrib. 23:40, 13 November 2018 (UTC)

Reqest for Wikipedia:IP_block_exemption

This user's unblock request has been reviewed by an administrator, who accepted the request.

JoKalliauer (block log • active blocks • global blocks • contribs • deleted contribs • filter log • creation log • change block settings • unblock • checkuser (log))

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Request reason:

I would like to edit, and am not related to the blocked IP-address. I would like to publish a biography under my Username. I replace superseded FakePDF with the PNG/JPEG, since the fake-PDFs will get deleted.

Accept reason:

I've lifted the restriction on registered users, so you should be good to go. Primefac (talk) 01:10, 6 January 2019 (UTC)

If you are unblocked, what articles do you intend to edit?

• create a biography
• all Sites that conatain https://commons.wikimedia.org/wiki/Category:Fake_PDF
• https://en.wikipedia.org/wiki/User:JoKalliauer

Why do you think there is a block currently affecting you? If you believe it's in error, tell us how.

My IP is blocked, If you don't believe you are allowed to use a CheckUser

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Du bist aus dem folgenden Grund nicht berechtigt, die Seite zu bearbeiten:

Dein Benutzername oder deine IP-Adresse wurde gesperrt.

Die Sperrung wurde vom Administrator Primefac durchgeführt. Als Grund wurde Using Wikipedia for promotion or advertising purposes angegeben.

   Beginn der Sperre: 15:25, 3. Jan. 2019
   Ende der Sperre: 15:25, 10. Jan. 2019
   Sperre betrifft: 217.149.172.0/22

Du kannst Primefac oder einen der anderen Administratoren kontaktieren, um über die Sperre zu diskutieren. Du kannst die „E-Mail an diesen Benutzer“-Funktion nicht nutzen, solange keine gültige E-Mail-Adresse in deinen Benutzerkonto-Einstellungen eingetragen ist oder diese Funktion für dich gesperrt wurde. Deine aktuelle IP-Adresse ist 217.149.172.131 und die Sperrkennung lautet 8763418. Bitte füge alle Informationen jeder Anfrage hinzu, die du stellst.

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Is there anything else you would like us to consider when reviewing your block?

I would say I am a trustfull user on de.wikipedia and on commons.wikimedia:

https://en.wikipedia.org/wiki/Special:CentralAuth/JoKalliauer

 — Johannes Kalliauer - contrib. 21:33, 5 January 2019 (UTC) @Primefac:  — Johannes Kalliauer - contrib. 21:39, 5 January 2019 (UTC)

@Primefac: Any reason not to make the IP range block anon-only? Huon (talk) 21:44, 5 January 2019 (UTC)

Not that I can think of - not sure why it was enabled in the first place (misclick?). Primefac (talk) 01:11, 6 January 2019 (UTC)

File:Intercultural competence.jpg listed for discussion

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Resolved

 –  — Johannes Kalliauer - contrib. 02:16, 14 March 2022 (UTC)

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Resolved

 –  — Johannes Kalliauer - contrib. 02:16, 14 March 2022 (UTC)

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Resolved

 –  — Johannes Kalliauer - contrib. 02:16, 14 March 2022 (UTC)

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Resolved

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Skinflint price comparision moved to draftspace

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Resolved

 –  — Johannes Kalliauer - contrib. 02:16, 14 March 2022 (UTC)

SVG

Hi @JoKalliauer, thanks for fixing the Flashrom SVG! PhotographyEdits (talk) 19:14, 15 June 2022 (UTC)

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Internal energy

Hi editor JoKalliauer. I have put on the talk page of the article Internal energy a comment about your recent edit. Please would you very kindly reply.Chjoaygame (talk) 13:15, 17 August 2022 (UTC)

Dear editor JoKalliauer, thank you for your post https://en.wikipedia.org/w/index.php?title=Talk%3AInternal_energy&type=revision&diff=1105103345&oldid=1104984019 on the talk page of the article on internal energy. Perhaps you may like to talk a bit with me on my talk page. I will shortly start a section, headed 'Thermodynamics', there for the purpose.Chjoaygame (talk) 20:11, 18 August 2022 (UTC)

That you asked the question "Did I say something wrong?" suggested a good prospect for progress through a quiet cooperative chat.Chjoaygame (talk) 16:30, 25 August 2022 (UTC)

@Chjoaygame: I always assume good faith. Would you like to discuss on the talk-page or more quite via Skype,Zoom,… ? Would you like to raise a question?  — Johannes Kalliauer - contrib. 16:34, 25 August 2022 (UTC)

Thank you for your prompt and positive reply. It is in the small hours of the morning here, and I ought to be asleep. Please let me reply later.Chjoaygame (talk) 19:19, 25 August 2022 (UTC)

I am overloaded at present. Let me come back soon.Chjoaygame (talk) 16:18, 26 August 2022 (UTC)

sorry I didn't get back to you by Chjoaygame in Special:Diff/1134139159

Dear JoKalliauer, it is good that you take an interest in this topic, but it is not good that you confound it with a different topic. I am sorry I was preoccupied and did not get around to talking over this matter with you last time. What you like to call "thermal energy (i.e. internal kinetic energy)" is not a thermodynamic concept. It is a concept of statistical mechanics or of thermal physics. It leads students to be confused if the topics are not clearly distinguished. The topic of the article is internal energy in thermodynamics. Statistical mechanics can in some cases (e.g. an ideal gas) give a detailed explanation of the distinction between the potential energies of relation between the microscopic particles of a body of matter and their kinetic energies, but, in many other cases, this is hardly feasible in practical detail. One of the great merits of thermodynamics is that it thoroughly abjures any attempt to make the distinction explicit. This is part of why Einstein said of thermodynamics that it is the only branch of physics that, within its domain of applicability, will never be overthrown. Thermodynamics is essentially a macroscopic account, with no reliance on microscopic ingredients. Statistical mechanics is essentially a microscopic account, with reference to thermodynamical quantities, but not taking them as leading ingredients. Physics in some parts of the world passed through a time when people thought that they would be very clever and combine thermodynamics with statistical mechanics in a 'modern and enlightened' topic called 'thermal physics'. Some people still like to think that way. But that way robs thermodynamics of its pristine logic and clarity, so that students exposed to that way miss the logical elegance of thermodynamics. Your "thermal energy (i.e. internal kinetic energy)" belongs not to thermodynamics itself, but to the statistical mechanical explanation of thermodynamics, and it is mentioned as doing so later in the lead of the article: "In statistical mechanics, the internal energy of a body can be analyzed microscopically in terms of the kinetic energies of microscopic motion of the system's particles from translations, rotations, and vibrations, and of the potential energies associated with microscopic forces, including chemical bonds." I think it would tend to confuse students and newcomers to find it also referred to earlier in the lead, in the part directly about thermodynamics. I have not tried to undo your edit https://en.wikipedia.org/w/index.php?title=Internal_energy&diff=1134066890&oldid=1133471302 that puts it in again early in the lead: "... , but it includes the thermal energy (i.e. internal kinetic energy)". I hope you may be willing to undo it yourself. I would like to chat it over further with you if you like, either here or on my talk page, as you may please. I want to avoid a cycle of counter-edits, because it can lead to a mess, especially if it leads to a debate with too many participants on the talk page of the article. For the present, I have retired from editing the article on Heat because it has been taken over by drive-by shooters and instant experts who know everything and so do not need to read or understand the reliable sources, and indeed do not distinguish reliable sources from literary ones. The lead of the article on heat is now wrong and has been practically destroyed as a contribution to a logically structured development of thermodynamics, but I fear that attempts to fix it right now are likely merely to make the instant experts double down.Chjoaygame (talk) 05:04, 17 January 2023 (UTC)

The Grand_canonical_ensemble uses the Grand_potential which is a function of Internal_energy, see Grand_potential#Definition. Either you slit Internal_energy into Internal_energy (macroscopic) and Internal_energy (microscopic), or you include both topics in this article. But just because you are familiar to only one of them, does not mean the other one is unimportant.  — Johannes Kalliauer - contrib. 17:34, 17 January 2023 (UTC)

The total energy of a body is the sum of several components. Let $V$ denote the potential energy of the body as a whole, with respect to external fields, $K$ its kinetic energy as a whole relative to its surroundings, and $U$ its internal energy. Then its total energy $E$ is given by

$E=U+K+V$.

Chjoaygame (talk) 07:37, 17 January 2023 (UTC)

@Chjoaygame: Sorry K is only the "external kinetik energy"!

Increasing the temperature increases the internal kinetic energy, and therfore also the internal energy.

 — Johannes Kalliauer - contrib. 17:35, 17 January 2023 (UTC)

thank you for your reply by Chjoaygame in Special:Diff/1134273252

Thank you for your thoughtful replies. Of course you are right that increasing the temperature by heating the body increases the kinetic energies of the particles, without increasing the kinetic energy of the body as a whole with respect to its surroundings. Your term "external kinetic energy" is not often found in reliable sources on thermodynamics, and not even in reliable sources on statistical mechanics. The temperature is defined with respect to the body, as practically stationary, as distinct from its surroundings and external fields, with respect to which it is positioned and might move. Of course you are right that the grand canonical ensemble is defined in terms of the grand potential which is defined in terms of the internal energy. You prefer to start from the viewpoint of statistical mechanics, or of thermal physics, not from the viewpoint of thermodynamics. The grand canonical ensemble is a concept of statistical mechanics, microscopic in character, not of thermodynamics, macroscopic in character. The present article starts "The internal energy of a thermodynamic system ...". The present article is mainly structured from the viewpoint of thermodynamics, with explanations and analysis in terms of statistical mechanics: "In statistical mechanics, the internal energy of a body can be analyzed microscopically in terms of the kinetic energies of microscopic motion of the system's particles from translations, rotations, and vibrations, and of the potential energies associated with microscopic forces, including chemical bonds." You write "But just because you are familiar to only one of them, does not mean the other one is unimportant." No one is suggesting that one of the viewpoints is unimportant. But the article distinguishes between the viewpoints. In the article lead, this is done by putting them in separate paragraphs. The kinetic energy of the particles, relative to the body as distinct from relative to the surroundings, is respected in the lead's third paragraph about the statistical mechanical analysis of the internal energy. For a body of matter such as a liquid or solid, the microscopic particles such as molecules are mostly not freely moving, but are subject to forces of intermolecular interaction, except that some electrons can be more or less freely moving. This is different from a body of matter such as an ideal gas, in which all the microscopic particles are more or less freely moving except during collisions. For a Knudsen gas, the particles are mostly freely moving, but the intermolecular collisions are rare, and it is common enough in nature to find departures from internal thermodynamic equilibrium, for example when the body is subject to time-invariant non-isotropic external radiation. The concept of 'thermal energy' is mainly concerned with cases in which there are many particles that are more or less freely moving, with frequent enough collisions, so that their kinetic energy is practically proportional to the temperature. That is why the SI temperature is no longer defined in thermodynamic terms. It is nowadays necessary to distinguish between thermodynamic temperature, defined macroscopically as Kelvin defined it, and SI temperature as currently defined by international convention in terms of microscopically explained properties. The reason is that some quantities governed by average particle kinetic energy can be measured more precisely than is practical for thermodynamic quantities.Chjoaygame (talk) 21:19, 17 January 2023 (UTC)

@Chjoaygame: You write “It excludes the kinetic energy of the system as a whole”, this is pretty vage. Do you mean the kinetic energy of the center of mass of the system, or the movement of the boundary of the system? Because the center of mass can change without changing the position of the boundaries.  — Johannes Kalliauer - contrib. 21:36, 17 January 2023 (UTC)

Thank you for your thoughtful post.

The kinetic energy of the system as a whole is the sum of the kinetic energies of its microscopic constituents considered as moving with respect to its surroundings, less the sum of the kinetic energies of its microscopic constituents considered as moving with respect to the system itself, defined its centre of mass considered as moving with respect to its surroundings. It is part of the definition of a thermodynamic system that it is in its own state of internal thermodynamic equilibrium.Chjoaygame (talk) 22:34, 17 January 2023 (UTC)

@Chjoaygame: Let’s assume a box that is held in place to all surroundings (i.e. the earth stops spinning and just stays in place). That means if you have a closed box (e.g. a closed insulated bottle) not interacting with the surrounding in a gravitational field, and the orignially mixed liquid inside seperates into the heavy substances at the bottom and the lighter substances at the top, the center of mass moves with respec to its surroundings, but the box stays in place. So the seperation in the box creates a kinetic energy of the system as a whole, even though the box is not moving at all?  — Johannes Kalliauer - contrib. 01:25, 18 January 2023 (UTC)

Thank you for your thinking this over.

It is part of the definition of a thermodynamic system that it is in its own state of internal thermodynamic equilibrium.Chjoaygame (talk) 01:46, 18 January 2023 (UTC)

@Chjoaygame: How says that? As soon as you change temperature or preasure or a chemical reaction is going on, it won’t be in a state of internal thermodynamic equilibrium, that’s why we have wind within a closed system (e.g. earth).  — Johannes Kalliauer - contrib. 02:22, 18 January 2023 (UTC)

7.900 bytes comment of Chjoaygame

Dear JoKalliauer, I get the impression that you are thinking this out for yourself, from scratch. That is commendable, and, in my opinion practically necessary, but, for the purpose of Wikipedia editing, it should be brought to completion by checks in reliable sources. This particular matter is not too easy to cover with brief explicit quotes from reliable sources. Uffink writes: In contrast to mechanics, thermodynamics does not possess equations of motion. This, in turn, is due to the fact that thermodynamical processes only take place after an external intervention on the system (e.g. removing a partition, establishing thermal contact with a heat bath, pushing a piston, etc.). They do not refer to the autonomous behaviour of a free system. Again, Uffink writes: A common and preliminary description of the Second Law is that it guarantees that all physical systems in thermal equilibrium can be characterised by a quantity called entropy, ... People dispute whether one should in English speak of 'the minus oneth law of thermodynamics', or of the 'minus first law of thermodynamics'. I prefer to speak of 'the minus oneth'. I don't know what is the conventional preference. I am inclined to pronounce 'oneth' with a silent 'e' as in the dot in 'mon·th' and in 'ten·th'. The pronunciation may not matter too much. Not too many texts, or even journal articles, talk of the 'minus oneth law of thermodynamics', though a few do. But reliable sources on thermodynamics take it for granted that a thermodynamic system is not just any macroscopic physical system. This is necessary for thermodynamics because the definition of thermodynamic entropy assumes that the system is in its own state of internal thermodynamic equilibrium. E.T. Jaynes writes: After the above demonstration that any demonstration of the second law must involve entropy as measured experimentally, it may come as a shock to realize that, nevertheless, thermodynamics knows of no such notion as "the entropy of a physical system." Thermodynamics does have the concept of the entropy of a thermodynamic system; but a given physical system corresponds to many different thermodynamic systems. Sorry to say I am ignorant of the German language. So I have to quote the English translation of Planck's Treatise. Having started with what is often called 'the zeroth law of thermodynamics', which had long before been stated by Maxwell, Plank goes on to write: §6. In the following we shall deal chiefly with homogeneous, isotropic bodies of any form, possessing throughout their substance the same temperature and density, and subject to a uniform pressure acting everywhere perpendicular to the surface. They, therefore, also exert the same pressure outwards. Surface phenomena are thereby disregarded. Planck does not name this as a law of thermodynamics. It is just his presupposition. Bailyn expresses the minus oneth law as follows: THE LAW OF EQUILIBRIUM: A macroscopic, bounded, nongravitating system that is otherwise isolated or in a uniform environment attempts to reach an asymptotic state called equilibrium characterized by constant and piece-wise uniform values of its intensive state variables, unless it is already in equilibrium, in which case it will remain indefinitely in this state unless acted on by systems with different intensive state variables, or systems in relative motion. Callen is reliable source on basic thermodynamics, but he does not stick to the customary formulation of the customary axioms. He gives a long discussion of the state of thermodynamic equilbrium in a body. He expresses the minus oneth law as follows: Postulate 1. There exist particular states (called equilibrium states) of simple systems that, macroscopically, are characterized completely by the internal energy U, the volume V, and the mole numbers N1, N2,...., Nr of the chemical components. Brown & Uffink (2001) write the minus oneth law as follows: Equilibrium Principle: An isolated system in an arbitrary initial state within a finite fixed volume will spontaneously attain a unique state of equilibrium. Marsland, Brown, and Valente (2015) use the term 'minus first law' as follows:    It has occasionally been noted in the literature that a fundamental principle that underlies all thermodynamic reasoning (including the zeroth law concerning the transitivity of equilibrium) is this: An isolated system in an arbitrary initial state within a finite fixed volume will spontaneously attain a unique state of equilibrium.    This equilibration principle is the entry point in thermodynamics of time asymmetry: an isolated system evolves from non-equilibrium into equilibrium, but not the reverse. Already in 1897 Planck had emphasised the independence of this principle from the second law,7 and in subsequent literature, it has been variously called the “zeroth law” (a particularly unfortunate title, given that it standardly refers to the transitivity of equilibrium between systems), the “minus first law,”8 and the “law of approach to equilibrium.”9 The suggestion we wish to make is that all references, implicit and explicit, to the temporal ordering of events in thermodynamics can be understood in relation to the arrow of time defined by this process of spontaneous equilibration. You write "... a closed system (e.g. earth)." For many purposes, the earth is considered as an open system. For example, many hydrogen molecules in the atmosphere attain escape velocity and leave the earth, presumably for ever. The volcanic eruption near Tonga, mainly on 15 Jan 2023, is said to have ejected substantial amounts of matter into outer space. Meteors and meteorites, sometimes large ones, come into the earth system. Climate change debates are largely about how radiant heat from the sun is absorbed mainly as visible light and how infrared energy is radiated to space, largely from the atmosphere including clouds, but also to some extent through the atmospheric window from the condensed matter of the land and sea. Let alone being a closed system, the earth is not a thermodynamic system, because it is not in a state of its own internal thermodynamic equilibrium. The earth may be considered as a physical system, but not as a thermodynamic system. References Chjoaygame (talk) 07:44, 18 January 2023 (UTC)

@Chjoaygame: Thanks for writing a 7.900 bytes comment. Maybe there should exist two articles one about Internal energy (thermodynamics) and one about Internal energy (statistical ensemble). As long as Grand_potential#Definition links to Internal energy, Internal energy has to cover both topics.  — Johannes Kalliauer - contrib. 17:59, 18 January 2023 (UTC)

To use an Americanism, you're welcome!Chjoaygame (talk) 19:54, 18 January 2023 (UTC)

The physical substance here is the distinction between a body of matter in its own state of internal thermodynamic equilibrium, and a system that is not so. Both the thermodynamic system and the ensembles of statistical mechanics refer to one and the same physical state of internal thermodynamic equilibrium, for which they assume the existence of a properly defined entropy.

The difference between thermodynamic equilibrium and non-equilibrium isn't just a difference of ball parks, nor a difference of planets, nor of solar systems: it's a difference of galaxies. For a non-equilibrium system, hardly anyone even tries to talk about giving a proper definition of entropy.Chjoaygame (talk) 21:35, 18 January 2023 (UTC)