text:
Wikiversity:Services

Wikiversity helpful services here to help you:

Teaching

 * Educator's Mentors
 * Get a job
 * learning goals

Learning

 * Prepare for a test
 * Prepare for a math contest
 * Get library services
 * Home school your kids
 * Learn about getting degrees via distance learning
 * Note: Wikiversity does not confer academic degrees

 * Teach your kids languages
 * Travel academically

Researching

 * Become a freelance academic
 * Publishing original research
 * Learn about similar universities.
 * Manage your academic finances
 * Obtain research grants
 * Teach a course

Networking

 * Network with other people

Community service

 * Community service

title: Wikiversity:Services


text:
Wikiversity:History of Wikiversity

The History of Wikiversity began with initial development of the Wikiversity community within the Wikibooks sister project. The fundamental goal for Wikiversity was to broaden the scope of activities within the Wikimedia community to include additional types of learning resources in addition to textbooks. Wikiversity has existed as an independent Wikimedia Foundation project since August 2006. This page describes the history of the Wikiversity project including the very first project proposal that was not approved (2005) and the second proposal that was approved (2006). Today, Wikiversity has tens of thousands of open access and openly editable learning resources and projects.

About
This page describes the historical development of Wikiversity. To learn more about Wikiversity see:

Wikiversity's origins
Wikiversity started developing on Wikibooks. Wikibooks was launched in July 2003. Wikibooks is for free content digital textbooks. However, the Wikibooks' Wikiversity section was proposed for deletion in August 2005. Soon after that, there was a proposal to make Wikiversity an independent Wikimedia Foundation project. In addition to the information on the proposed projects page, the original proposal was described in a mailing list post and on the Wikiversity page of the Wikimedia meta-wiki.

In November 2005, the Wikimedia Foundation Board of Trustees rejected the first Wikiversity project proposal and instructed the Wikiversity community to modify the proposal to "exclude credentials, exclude online-courses". The Board requested that the Wikiversity community "clarify [the] concept of e-learning" that will guide Wikiversity. The modified Wikiversity project proposal that was approved by the Board calls for two major components of Wikiversity:
 * 1) learning resources and
 * 2) learning activities.

The Wikiversity model for e-learning is discussed at the Wikiversity Education Portal and related pages.

Approval by the Wikimedia Foundation
The Special projects committee (SPC) reviewed the modified Wikiversity proposal and adopted resolution 2006-39A (July 31, 2006): "The SPC recommend the creation of a beta Wikiversity project, to be hosted at the domain wikiversity.org, as per its scope, starting in August. The project will be dedicated to collecting free multilingual educational resources, and to supporting communities using those resources to teach and learn together. The beta stage of the project will run for six months, during which guidelines for further potential uses of the site, including collaborative research, will be developed on the beta wiki. These guidelines will be reviewed by the SPC at the end of the beta period."

"New languages can contribute content to beta.wikiversity.org; those with at least 10 active participants can request a separate domain for their language."

The SPC sent resolution 2006-39A to the Board of Trustees. This lead to the Wikiversity launch instructions from the Wikimedia Foundation Board of Trustees, followed by discussion on Wikibooks of the project's approval and plans for migration of Wikiversity content from Wikibooks to Wikiversity.

Wikiversity launch
The launch of Wikiversity was announced at Wikimania 2006, 5 years after the launch of Wikipedia in 2001 and 3 years after the launch of Wikibooks: "the idea here is to also host learning communities, so people who are actually trying to learn, actually have a place to come and interact and help each other figure out how to learn things. We're also going to be hosting and fostering research into how these kinds of things can be used more effectively." (source)

The English language Wikiversity website opened on August 15, 2006.

In the early stages of development, Wikiversity had discussion relating to policies, technical issues, and establishing an initial content infrastructure and general layout. The main forum for discussions became the Colloquium - take a look there and feel free to drop a reply to anything which interests you. Your viewpoint on longer term organizational issues is also welcome at Organizing Wikiversity.

Since then
The number and quality of Wikiversity resources and users has steadily increased since 2006 (31,674 learning resources as of 14/3/24). However, Wikiversity is not particularly well understood within the family of Wikimedia Foundation sister projects and it is not well-known or used by teachers, so there remains a lot of room for development.

Some examples of distinctive Wikiversity innovations are:
 * Wikidebates can help people learn a subject in general and/or how to debate
 * WikiJournals publishes a set of open-access, peer-reviewed academic journals with no publishing costs to authors

license: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/4.0/

title: Wikiversity:History of Wikiversity


text: Category:Cell biology learning projects

title: Category:Cell biology learning projects


text: Category:Biology learning projects

title: Category:Biology learning projects


text: Category:Business learning projects

title: Category:Business learning projects


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Talk:Basic kinematics

Hello, Basic kinematics is easily motivated from first principles by calculus. Are we going the route of separating algebra-based physics from calculus-based as two separate courses, or should this lesson plan include both approaches? Hypermorphism 04:26, 22 August 2006 (UTC)

I recommend separating algebra-based and calculus-based kinematics. First, the equations of motion are slightly different. Second, algebra-based provides a good introduction to those without a higher-level mathematical background. I would also recommend Vectors & their applications being a separate lesson and differentiaing between 1d, 2d, and 3d motion. -Torris

title: Talk:Basic kinematics


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User:Marinerrr~enwikiversity

My name is Troy.

I am a CPA, working for an public company. My current position is the Sarbanes-Oxley Program Manager. Previous to this, I was a Manager of Internal Audit, Manager of IT Audit, and in public practice, spent two years at a "Big-Six" firm (to give an idea of when I entered the profession).

While I truely enjoy auditing, my passion is teaching. While I have yet to be able to make enough money to live my preferred lifestyle via teaching, that does not inhibit my desire to share my knowledge and experience with others. My wife and I share an ambition to participate or even help create a collegiate-level education program that is offered for free to the students. To get our feet wet in that endeavor, we are starting with Wikiversity.

If anyone has comments or feedback on my contributions, please don't hesitate to let me know. I'm very excited to become a new contributing member to the Wikiversity space and any suggestions on how to be a better member are strongly encouraged.

Glad to be aboard.

Troy.

title: User:Marinerrr~enwikiversity


text:
User talk:Marinerrr~enwikiversity

Please provide any and all feedback to me here. I will respond to feedback in italics so you can tell that I have responded.

Your account will be renamed
Hello,

The developer team at Wikimedia is making some changes to how accounts work, as part of our on-going efforts to provide new and better tools for our users like cross-wiki notifications. These changes will mean you have the same account name everywhere. This will let us give you new features that will help you edit and discuss better, and allow more flexible user permissions for tools. One of the side-effects of this is that user accounts will now have to be unique across all 900 Wikimedia wikis. See the announcement for more information.

Unfortunately, your account clashes with another account also called Marinerrr. To make sure that both of you can use all Wikimedia projects in future, we have reserved the name Marinerrr~enwikiversity that only you will have. If you like it, you don't have to do anything. If you do not like it, you can pick out a different name.

Your account will still work as before, and you will be credited for all your edits made so far, but you will have to use the new account name when you log in.

Sorry for the inconvenience.

Yours, Keegan Peterzell Community Liaison, Wikimedia Foundation 23:38, 17 March 2015 (UTC)

Renamed
 This account has been renamed as part of single-user login finalisation. If you own this account you can |log in using your previous username and password for more information. If you do not like this account's new name, you can choose your own using this form after logging in: . -- Keegan (WMF) (talk) 06:15, 19 April 2015 (UTC)

title: User talk:Marinerrr~enwikiversity


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Portal:Artificial intelligence

Four approaches summarize past attempts to define the field:
 * The study of systems that think like humans.
 * The study of systems that think rationally.
 * The study of systems that act like humans.
 * The study of systems that act rationally.

Of these approaches, the former two are considered to be "white-box" approaches because they require our analysis of intelligence to be based on the rationale for the behaviour rather than the behaviour itself. The latter two are considered "black-box" approaches because they operationalize intelligence by measuring performance over a task domain. We prefer the latter two because they allow for quantitative comparisons between systems rather than requiring a qualitative comparison of rationales. We realize that the ultimate performance of a system will depend heavily on the task domain that it is situated in, and this motivates our preference for studying activity (behaviour) rather than thought (rationale).

Although the third approach, (known as cognitive modelling), is of great importance to cognitive scientists, we concern ourselves with the fourth approach. Of the four, this approach allows to consider the performance of a theoretical system that yields the behaviour optimally suited to achieve its goals, given the information available to it.

This approach motivates us to provide a model for our intelligent systems known as the intelligent agent.

Learning projects
See: Learning Projects and the Learning model.

Learning materials and learning projects are located in the main Wikiversity namespace. Simply make a link to the name of the learning project (learning projects are independent pages in the main namespace) and start writing! We suggest the use of the learning project template (use "subst:Learning project boilerplate" on the new page, inside the double curved brackets – ).

Learning materials and learning projects can be used by multiple departments. Cooperate with other departments that use the same learning resource. Understanding AI as a field of Computer Science involves a thorough understanding of the following topics:

Remember, Wikiversity has adopted the "learning by doing" model for education. Lessons should center on learning activities for Wikiversity participants. We learn by doing.

Select a descriptive name for each learning project.

Applied project

 * Building an artificial neural network using reinforcement learning strategies

Research projects

 * Neural Symbolic Learning and Reasoning

Readings

 * https://www.deeplearning.ai/
 * https://github.com/fastai/fastbook/
 * Your Deep Learning Journey
 * From Model to Production
 * Data Ethics
 * Under the Hood: Training a Digit Classifier
 * Image Classification
 * Other Computer Vision Problems
 * Training a State-of-the-Art Model
 * Collaborative Filtering Deep Dive
 * Tabular Modeling Deep Dive
 * NLP Deep Dive: RNNs
 * Data Munging with fastai's Mid-Level API
 * A Language Model from Scratch
 * Convolutional Neural Networks
 * ResNets
 * Application Architectures Deep Dive
 * The Training Process
 * A Neural Net from the Foundations
 * CNN Interpretation with CAM
 * A fastai Learner from Scratch
 * Concluding Thoughts
 * Appendix: Jupyter Notebook 101
 * Natural Language Processing (NLP) course
 * transformer models
 * using transformers: pipeline, tokenizer, AutoModel, decoding, padding, attention mask
 * fine-tuning a pretrained model: preprocessing, dataset, dynamic padding, batch, collate function, train, predict, evaluate, accelerate
 * sharing models and tokenizers: hub, model card
 * the datasets library
 * the tokenizers library
 * main nlp tasks
 * how to ask for help
 * building and sharing demos new
 * Artificial Intelligence: A Modern Approach, companion to the popular textbook

Wikipedia

 * Deep belief network
 * Speech recognition
 * List of artificial intelligence projects
 * List of datasets for machine learning research
 * Deep belief network
 * Speech recognition
 * List of artificial intelligence projects
 * List of datasets for machine learning research
 * Deep belief network
 * Speech recognition
 * List of artificial intelligence projects
 * List of datasets for machine learning research
 * List of datasets for machine learning research

Open source software

 * EVO - 3D artificial life simulator
 * MindForth artificial mind for robots
 * Open Source 3D Vision Library
 * Texai English Lexicon, Fluid Construction Grammar, and RDF Entity Manager

People

 * --NicholasTurnbull 04:12, 14 November 2008 (UTC)

Papers

 * Papers @ CALO: Cognitive Agent that Learns and Organizes

Fachbereich Virtuelle Wissenskonstruktion fr:Département:Intelligence artificielle Introdução à Inteligência Artificial Факультет искусственного интеллекта

title: Portal:Artificial intelligence


text:
User:Michaelnelson

I love the idea of learning by doing, and have been working with others on the Web Design Wikiversity program setting up activities like the XML Challenges and PHP Challenges to help learners learn by doing.

A lot of what we do with our Web Design learners at my place of work involves individual Learning Agreements, that are negotiated with the learner and facilitator. With the aim of practising what I preach, I'm currently setting up my own Learning Plan 2006-07 to focus my own learning.

I also enjoy spending time with my wife and kids, playing with geometric algebra's applications to relativity, and reading for Librivox.

Other learning projects that I'm involved/interested in: Investigating 3D Geometric Algebra and 3D Geometric Algebra and Special Relativity.

Blog at http://liveandletlearn.net

title: User:Michaelnelson


text:
Portal talk:Practical Arts and Sciences

If you want to experiment with a radical new version of Portal:Practical Arts and Sciences you can work at Portal:Practical Arts and Sciencesnew.

If you update featured content on this portal, make sure that you update Portal:Practical Arts and Sciences/Featured.

is this school necessary?
I want to question the relevence of this school. I may be well be wrong but why should we make a confusing seperation between subjects that a 'have practical application to everyday life' and thoses that don't? Most feild of study will most likey fall under both and this school seems like it will only confuse the catorgarising of subjects. m_dentonNZ 08:42, 22 August 2006 (UTC)

Well, but there is a problem with some subjects. For example, where would you classify the studies of a pilot? Some subjects are multidisciplinar and gather many fields. I'm studiying Aeronautical Management and I have subjects as Medicine, Economics, Counting, Maths, Physics, Psychology, Geography, Meteorology, Computing, Law and everything needed for being a pilot (Navigation, Communication, Procedures, Performances, Intrumentation...). So, where do I classify my degree? That is why I consider this school is needed. Pbolgiani 11:29, 24 August 2006 (UTC)

I agree with Pbolgiani. The distinction between "practical" and "academic" is real and relevant as illustrated by the divergence in focus and method between Trade Schools and Universities. For instance, I intend to create a welding course. While there is a certain amount of metallurgy and mathematics involved, the bulk of the craft can only be learned by carefully guided and exhaustive physical repetition. This sets it entirely apart, pedagogically, from even closely related "impractical" schools like engineering or construction management. Unless you mean to exclude traditional trade-related, hands-on courses, then this dichotomy cannot be ignored. Lordcorvid 23:03, 15 September 2006 (UTC)

Foreign Languages as a division?
I think foreign languages should at least be a school, if not a faculty. Within most Western universities, languages have their own faculty. Davymast 20:19, 14 October 2006 (UTC)

New page format
Use Portal:Practical Arts and Sciencesnew for design of new versions of Portal:Practical Arts and Sciences. My main goal was to include featured content and links to other Wikiversity content about Practical Arts and Sciences. --JWSchmidt 19:24, 22 January 2007 (UTC)

Picture on portal
By the way, the building on the picture on the Portal (Astra brewery office building in Hamburg, Germany by architect von Bassewitz, no longer exists. The building was shaped after a beer glass. If that was good architecture is disputed. The people who broke it down thought no :-)Nannus 21:03, 3 March 2007 (UTC)

School of Agriculture
The School of Agriculture has been founded. So far there is some interest in Pomology, Permaculture and Agricultural Engineering. -- CQ 23:44, 13 March 2007 (UTC)

title: Portal talk:Practical Arts and Sciences


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School:Engineering/Participants

The histories of Wikiversity pages indicate who the active participants are. If you are an active participant in any engineering topic or school, you may list your name here (this can help small schools grow and the participants communicate better; for large schools it is not needed).
 * 1) Mirwin 08:55, 22 August 2006 (UTC)
 * 2) WiKimik 02:16, 18 October 2006 (UTC)
 * 3) Dionysios (talk), a Participant in the Wikiversity School of Advanced General Studies, Date: 2007-04-25 (April 25, 2007) Time: 1239301 UTC

title: School:Engineering/Participants


text:
Statics

Part of the Division of Applied Mechanics and the School of Engineering

Content summary
The study of Statics is the fundamental examination of the effects of forces upon objects. Often referred to as the primary discipline within the field of Engineering Mechanics, statics explores the behavior of bodies that are at rest or move at a constant velocity. Dynamics is the subsequent study of bodies moving at a variable velocity (accelerating or decelerating).

Mathematics

 * Algebra
 * Trigonometry
 * Calculus

Physics

 * Introduction to physics
 * Classical Mechanics

Texts

 * Statics

Statics Lessons

 * Free Body Diagrams
 * Force Systems
 * Force Equilibrium
 * Structures
 * Beams
 * Friction

Preliminary Study guide

 * 1) Wikipedia article:Statics
 * 2) Wikipedia article:Force
 * 3) Wikipedia article:Particle
 * 4) Wikipedia article:Rigid Body
 * 5) Wikipedia article:Vector
 * 6) Wikipedia article:Newton's laws
 * 7) Wikipedia article:Units
 * 8) Wikipedia article:Free Body Diagram

Readings

 * Peruse the appropriate sections of Statics

Activities

 * Pass the "Concept Assesment Tool for Statics" Test; Carnegie Mellon
 * Assignment 1: /Introduction to Statical Principles and Methods for Solving/

Extra credit
Solve the following: A ladder stands on a rough horizontal floor and against a "perfectly" smooth vertical wall. The ladder makes 30° with the vertical. A man weighing 209.4 lb stands halfway up the ladder. Assuming the ladder does not slip on the floor, find:
 * 1) The reaction between ladder and wall.
 * 2) The reaction and magnitude of the reaction of the floor on the ladder.

Take g=9.8m/s^2 & 209.439 pounds = 95 kg

title: Statics


text:
In statics, the sum of the forces is equal to zero

Lesson: In Statics the Sum of the Forces is Equal to Zero.

The term statics refers to an object or system in static equilibrium. The object or system is motionless because all of the forces balance to zero.

Newton's Second Law:

ΣF = Σ(ma) = m1a1 + m2a2 + m3a3 + • • •  + mnan

The sum of the forces is equal to the mass times the acceleration. The 2nd law tells us that if the object or system is motionless, the acceleration is equal to zero. Therefore the sum of the vector forces must be equal to zero.

Example: Consider a table with four legs and a 200 kg object resting motionless in the center of the table:

Object     Mass of object = 200 kg ______________ |       |    Mass of table  = 100 kg   |        | |       |    What forces act upon the bottom of each table leg?

The force upward on the legs is found by balancing these forces in the equation given by Newton's Law:

ΣF = ma = 0 = - (200 kg X 9.81 m/s2) - (100 kg X 9.81 m/s2) + (Forceleg X 4)

Gravity is acting downward on the 200 kg object and the 100 kg table. Therefore, we may substitute the acceleration due to gravity (on Earth), g (9.81 m/s2), for a.

Forceleg = ((200 kg X 9.81 m/s2) + (100 kg X 9.81 m/s2)) / 4

The unit kg•m/s2 is equivalent to the unit of force called a Newton (N). Thus when multiplying through, the kilograms cancel out.

Forceleg = (1962 N + 981 N) / 4

Forceleg = 735.75 N

This means that each leg exerts a downward force of 735.75 Newtons on the floor, and the floor simultaneously exerts the same force upward on each table leg.

Notice that it is critical that a consistent sign convention be followed throughout the entire analysis effort. The sign convention is typically chosen in more complex problems to ease the total amount of algebra necessary to analyze the equations in the x, y, and z axis. We chose positive values to mean upward forces and negative values to mean downward forces, but we could have also used the opposite, provided we were consistent.

Corrollary for torque
Lesson: In Statics the Sum of the Torques is Equal to Zero.

The sum of all rotational forces, or torques, denoted by the capital Greek letter tau ($$\Tau$$), is also zero. Commonly used units for torque are foot•pounds (ft•lb) and Newton•meters (N•m).

Newton's Second Law (applied to torques):

Σ$$\Tau$$ = Σ(ωI) = ω1I1 + ω2I2 + ω3I3 + • • •  + ωnIn

The sum of the torques is equal to the rotational mass (or moment of inertia, I) times the angular acceleration (denoted by the lower case Greek letter omega, ω). The 2nd law tells us that if the object or system is motionless, the angular acceleration is equal to zero. Therefore the sum of the vector torques must be equal to zero.

Torques may also be calculated as forces times distances:

Σ$$\Tau$$ = Σ(Fd) = F1d1 + F2d2 + F3d3 + • • •  + Fndn

Example: Consider a massless lever with two weights attached and a single massless support:

|         +   Weight of object 1    = 10 lb  |         /|   Distance from fulcrum = 10 ft  |        / | |     R/  |   Distance of support W|    E/|S w1   from fulcrum         =  7 ft A|    V/ |U L|  E/  |P     Weight of object 2    = 80 lb L|  L/|  |P     Distance from fulcrum =  4 ft      |  / w2 |O | /    |R     What forces act upon the |/     |T     massless lever ? FLOOR

First let's write the static torque equation for the system:

Σ$$\Tau$$ = Σ(Fd) = F1d1 + FSdS + F2d2 = 0

Forces 1 and 2 are actually the weights of the two objects:

Σ$$\Tau$$ = Σ(Fd) = w1d1 + FSdS + w2d2 = 0

Substitute in known values:

Σ$$\Tau$$ = Σ(Fd) = (-10 lb)(10 ft) + FS(7 ft) + (-80 lb)(4 ft) = 0

Solve for FS:

Σ$$\Tau$$ = Σ(Fd) = (-100 ft•lb) + FS(7 ft) + (-320 ft•lb) = 0

FS(7 ft) = (420 ft•lb)

FS = (420 ft•lb)/(7 ft) = 60 lb

Thus, a force of 60 pounds acts upward on the lever from the support in order to balance the torques on the lever. Since the total weight on the lever is 90 pounds and 60 of those pounds are countered by the support, the remaining 30 pounds must act upward on the lever at the fulcrum in the lower, left corner.

Note that we didn't need to use the fulcrum as the point from which all distances are measured, we could have chosen any point along the lever. However, as with forces, a consistent sign convention must be used. In this case, positive may be used for clockwise (CW) torques measured from one point of view, with negative torques used for counterclockwise (CCW) torques measured from the same POV. The opposite system could also be used, so long as we were consistent.

Also note that the table example used previously stated that the object was in the center of the table. If not, then balancing the torques (in two directions) would result in more force supported by some table legs and less by others. If the object was directly over one of the legs, for example, then it's entire weight would be supported by that leg, in addition to one-fourth of the table's weight. The other legs would then only support one-fourth of the table's weight each.


text:
User:Sebmol/monobook.js

// FAQ: // // Frage:  Wie übernehme ich dieses Skript? // // Antwort: Einfach "Quelltext betrachten", alles markieren und kopieren, und dann in deine eigene //         monobook.js (also hierhinein: Benutzer:/monobook.js) kopieren. // // Frage:  Kann ich dieses Skript einfach so übernehmen, oder muss ich da tausend Sachen ändern? // // Antwort: Kannst du, und musst du nicht. Du musst genaugenommen nur eine einzige Zeile ändern, und //         zwar die auf diese Antwort folgende. Da musst du deinen Benutzernamen eintragen. //         Alles andere *kannst* du ändern, musst du aber nicht. 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Bin weiter auf Suche nach Bugs die während meiner //          Abwesenheit durch neue Mediawikiversionen entstanden sind. // // (2005)  *Automatisierter Löschantrag und Qualitätssicherung //           - Artikel müssen  nicht zum Bearbeiten geöffnet werden. //         *verbesserte Wartbarkeit //         *Revert-Button mit der Möglichkeit eine Begründung einzugeben //         *Optionale Dropdown-Auswahlfelder //         *Aussehen den anderen Feldern links angepasst, ist jetzt "seamless integratet" :-) //          *APPERs Rechtschreibprüfung //          *godmode-light //          *Man kann ein Häkchen setzen, wenn die Seite immer wieder neu geladen werden soll  //           -Nützlich für Recentchanges und andere Seiten. Für andere Zeitintervalle siehe Variable "timeout". // *************** SETUP Anfang ********************************** var usedropdown = false;        // Wenn keine Dropdowns gewünscht sind, hier false eintragen! var autosave = true;            // automatisches Speichern von QS/LA/SLA/BildLA/Vandal-Einträgen? var rvisminor = true;           // sind Reverts mit "(rev)"-Link Minor-Changes? var timeout = 50000;            // 50 Sekunden auf das Neuladen der Seite warten var usekatproject = true;       // LAs für Kategorien auf dem WikiProjekt eintragen? // systemweite Default-Funktionen aus MediaWiki:Monobook.js NavigationBarShowDefault = 0;  // Navi-Leisten: alle einklappen == 0; alle ausklappen == 15 (z.B.) var moveeditsection = false;   // bitte auf "false" lassen (da jetzt Teil der MediaWiki:Monobook.js) var oldEditsectionLinks = false;// "Bearbeiten"-Links bei Abschnitten ganz nach rechts? // ausgelagerte Funktionen: var godmodelight = true;       // "Zurücksetzen" einblenden? var godmodenewstyle = true;    // neuer Rollback-Kommentartext? var lupinpopups = false;       // Popups einbinden? var ripe = false;              // Ripe - Tooltips? var editlinkoldversion = true; // Bearbeiten-Link für ältere Versionen auf Versionshistorie anzeigen var revertwithreason = true;   // Revert-Link mit Grund-Eingabe auf Versionshistorie anzeigen var revlinkshowuser = true;    // beim Revertieren über (Rev)-Link letzten Benutzer angeben? var diffwidth = false;         // immer gleiche Breite der vergleichenden Versionen (diff.table)? var rechtschreibpruefung = false; // APPERs Rechtschreibprüfung? var beschriftungen = true;     // kosmetische Änderungen an der MediaWiki-Oberfläche var showredundantlinks = true; // zeigt doppelte Links an var hideown = false;           // eigene Änderungen in Beobachtungsliste verstecken var markadmins = false;         // Admins etc. besonders hervorheben var markutf8 = true;           // Sonderzeichenbenutzernamen besonders hervorheben var strictutf8 = false;        // soll wirklich bei jeder UTF-Kodierung gewarnt werden? var signing = false;           // automatische Unterschrift auf Diskussionsseiten? var addeditsection0 = true;    // TAB zum Editieren des nullten Abschnitts einer Seite var addlogslink = true;        // Zusatzlinks zu Spezial:Log einfügen var addusercontriblink = true; // auf Benutzerseiten auch noch Link auf Contributions? var js_highlight = false;      // javascript-code farbig hervorheben  (.js and pre-tags) var searchbox = false;         // erweitertes suchen/ersetzen var miniatlas = false;         // WikiMiniAtlas anschalten? var zeigeversion = true; var debugme = false; // **************** SETUP Ende *********************************** // <- nicht löschen! var trenner=' '; var br    =' '; var Quickbar = ' '; var version = 'P097k'; var xxx     = ''; var scrpt   = ''; var scrptn  = 0; var dropdown = usedropdown; var Monate = new Array("January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"); var jetzt = new Date; var Jahr = jetzt.getYear; if (Jahr < 999) Jahr += 1900; var WPDatum = jetzt.getDate + '._' + Monate[jetzt.getMonth] + '_' + Jahr; var UrlParameters = new Array ; readparams; // namespaces var isSpecial = ((document.URL.indexOf('Special:') > 0) || (document.URL.indexOf('Special%3A') > 0)); var isBild    = (document.URL.indexOf('Image:') > 0); var isCategory = (document.URL.indexOf('Category:') > 0); var isTemplate = (document.URL.indexOf('Template:') > 0); var isUserpage = (document.URL.indexOf('User:') > 0) || (document.URL.indexOf('Benutzer_talk:') > 0); var isGeneric = false; if ((!isBild) && (!isCategory) && (!isTemplate)) isGeneric = true; // other stuff var isPHP    = (document.URL.indexOf('index.php') > 0); var isDiff   = UrlParameters["diff"]; var isEdit   = (document.URL.indexOf('action=edit') > 0) || (document.URL.indexOf ('action=submit') > 0); var isRestore = (document.URL.indexOf('Special:Undelete') > 0) || (document.URL.indexOf('Special%3AUndelete') > 0); var isContrib = (document.URL.indexOf('Special:Contributions') > 0) || (document.URL.indexOf('Special%3AContributions') > 0); // uri-parameter // benutzt in aktion aus eintragen.js und revertme aus addEditAndRevertLinks.js var subjp     = 'subj';       //Subject var textp     = 'txt';        //Für Text-Austausch var insp      = 'ins';        //Vor dem Text einfügen var addp      = 'add';        //an Text anhängen var minorp    = 'minor';      //(k)leine Änderung var speichernp = 'speichern'; //Auf "Speichern" klicken var reloadme  = 'neuladen';   //merker für reload // // Ab hier der Inhalt des "Fensters" oben links // // w (0,br,'--Special--',''); w (1,'/w/index.php?title=Special%3APrefixindex&from='+user+'&namespace=2','MyPages','_blank'); w (1,'/w/index.php?title=Special:Recentchanges&hideminor=0&hideliu=1&hidebots=1&hidepatrolled=0&days=7&limit=250','RCs','_blank'); w (1,'/wiki/Spezial:Contributions/newbies','NCs','_blank'); w (1,'/wiki/Spezial:Newpages','New','_blank'); w (1,'/w/index.php?title=Special:Log&limit=1000&type=newusers','Newbies','_blank'); w (1,'/wiki/Special:Log','Log','_blank'); w (0,br,'--More Special--',''); w (1,'/wiki/Wikipedia:Löschkandidaten/Urheberrechtsverletzungen','URVs','_blank'); //w (1,'http://commons.wikimedia.org/wiki/Special:Upload','C-Upload','_blank'); w (1,'/wiki/Wikiversity:Requests_for_Deletion/','RfD','_blank'); w (1,'/wiki/Category:Candidates for speedy deletion','SD','_blank'); w (0,trenner,'--Externe--',''); w (1,'http://tools.wikimedia.de/~kate/cgi-bin/count_edits?user='+user+'&dbname=dewiki_p','Kate','_blank'); w (1,'http://tools.wikimedia.de/~interiot/cgi-bin/count_edits?user='+user+'&dbname=dewiki_p','(+)','_blank'); w (1,"http://www.ripe.net/whois",'ripe','_blank'); w (1,"http://www.affenkrieger.de/wiki/wikicc.php",'URV-Test','_blank'); w (1,"http://www.copyscape.com",'copyscape','_blank'); w (1,"http://www.canoo.net",'canoo','_blank'); w (1,"http://www.cia.gov/cia/publications/factbook/index.html",'Factbook','_blank'); // nur für Wikipedia Namensraum closedropdown; dropdown=false; if (isEdit && !isBild) { w (0,trenner,,); w (3,"br,,",'br'); w (3,"'†',,",'†'); w (3,",",'// Comment'); w (0,br,,); w (3,"' ',' ',''",'small'); w (3,"' ',' ',''",' strike '); w (3,"' ',' ',''",' under '); w (0,trenner,,); if (usedropdown) { dropdown=true; w (0,trenner,'--Bausteine--',''); }  w (3,"'== External links ==\\n',,",'Weblinks'); w (3,"'\\n',''","Kat:"); w (3,"'User:',,","Benutzer:"); w (3,",,''","WP:"); w (0,br,,); w (2,"'Redirect angelegt','#REDIRECT ',1","Redir"); //w (2,"'+Überarbeiten','\\n\\n',3","Überarb"); //w (2,"'+Stub','\\n\\n',2","Stub"); //w (2,"'+Lückenhaft','\\n\\n',3","Lücke"); //w (2,"'+Rechtshinweis','',2","Recht"); //w (2,"'+Gesundheitshinweis','',2","Gesundh."); closedropdown;dropdown=false; /*  w (0,trenner,'--Benutzersteine--',''); w (3,"' " + usersignature + "\\n',,","Hallo"); w (3,"' " + usersignature + "\\n',,",'Danke'); w (3,"'\\n',,",'Kind'); w (3,"'\\n',,",'Sign!'); w (3,"' " + usersignature + "\\n',,",'Vorschau'); w (3,"' " + usersignature + "\\n',,",'Linkspam'); closedropdown;dropdown=false; */  /*w (0,trenner,,); w (4,"wpTextReplace;","Replace"); //w (4,"myTypoKorr;","TypoKorr"); //w (4,"spellcheck;","Spellchk"); w (4,"replaceQuoteSigns;","FixQuotes"); // extern w (4,"ReplaceMarkup;","FixMarkup"); */ } //if (isEdit) /* if (isEdit && isBild) { w (0,trenner,,); w (4,"nowcomm;","NowCommons"); w (2,"'+Bild-Lizenz-unbekannt','\\n\\n',3","Bild-Liz.-unb."); } if ((!isSpecial) || (isContrib)) { w (0,trenner,,); if (( isGeneric) && (!isSpecial)) w (4,"eintragen(1);","QS"); if (( isGeneric) && (!isSpecial)) w (4,"eintragen(2);","LA"); if (( isBild)    && (!isSpecial)) w (4,"eintragen(4);","LABILD"); if (( isCategory) && (!isSpecial)) w (4,"eintragen(7);","LAKAT"); if (( isTemplate) && (!isSpecial)) w (4,"eintragen(8);","LAVORL"); if ((!isBild) && (!isSpecial)) w (4,"eintragen(3);","SLA"); if (( isGeneric) && (!isSpecial)) w (4,"eintragen(5);","URV"); if (( isContrib) || (isUserpage)) w (4,"eintragen(6);","Vandal"); } if (isRestore) { w (0,trenner,,); w (4,"TaggAll;","Alle Versionen, außer?"); } //if (isRestore) */ var indropdown = false; var ind = 0; closedropdown; document.write(Quickbar); if (!isEdit || zeigeversion || isPHP) { document.write(' ',                !isEdit ?                   ('Neu laden: ')                   : ,                 zeigeversion ?                   (' ' + version)                   : ,                 ' '); }                document.write(xxx,' '); if (scrpt > '') { document.write(' function _doopt (was) { switch (was) {', scrpt, '}}<\/script>'); scrpt=''; } // // ab hier functions // var timeoutaktiv; // sollte evtl. besser lokal sein? function setReload { if (document.getElementById('reloadme').checked && (UrlParameters[reloadme] != "1")) { var uri = (document.URL.indexOf('?') >0) ? ('&' + reloadme + '=1') : ('?' + reloadme + '=1'); timeoutaktiv = window.setTimeout(location.href=location.href+uri, timeout); }  else if (document.getElementById('reloadme').checked	&& (UrlParameters[reloadme] == "1")) { timeoutaktiv=window.setTimeout("location.reload", timeout); }  else { window.clearTimeout(timeoutaktiv); // bizarr, timeoutaktiv ist hier gar nicht belegt? } } function w (was,lurl,linktext,targt) { if (!dropdown) { switch (was) { case 0 : xxx=xxx+lurl;break; case 1 : xxx=xxx+''+linktext+' ';break; case 2 : xxx=xxx+''+linktext+' ';break; case 3 : xxx=xxx+''+linktext+' ';break; case 4 : xxx=xxx+''+linktext+' ';break; }	 	     } //if else {  var ltext='__________'.substr(1,ind)+linktext; switch (was) { case 0 : if (lurl==br) {xxx=xxx+' '+linktext+' ';ind=2;} else if (lurl==trenner) newdropdown(linktext); break; case 1 : xxx=xxx+''+ltext+' ';break; case 2 : xxx=xxx+''+ltext+' '; scrpt=scrpt+'case '+scrptn+':newtext('+lurl+');break;';scrptn++;break; case 3 : xxx=xxx+''+ltext+' '; scrpt=scrpt+'case '+scrptn+':insertTags('+lurl+');break;';scrptn++;break; case 4 : xxx=xxx+''+ltext+' '; scrpt=scrpt+'case '+scrptn+':'+lurl+';break;';scrptn++;break; } //switch } //else } //w function dodropdown (aktion) { var zutun = aktion.split('|'); var was = Number(zutun[0]); var wie = zutun[1]; switch (was) { case 1 : window.open (wie); break; case 2 : _doopt (Number(wie)); break; case 3 : _doopt (Number(wie)); break; case 4 : _doopt (Number(wie)); break; } //switch } //dodropdown function closedropdown { if (indropdown) xxx=xxx+' '; indropdown = false; }	 function newdropdown (oname) { closedropdown; xxx=xxx+''; if (oname > '') {xxx=xxx+' '+oname+' ';} indropdown = true; ind=2; }	 function newtext (subj,text,wo) { //wo=1 : Text austauschen //wo=2 : Text am Ende anhängen //wo=3 : Text vorne Einfügen if (subj>"") document.editform.wpSummary.value=subj; switch (wo) { case 1 : document.editform.wpTextbox1.value=text+'\n'; break; case 2 : document.editform.wpTextbox1.value=document.editform.wpTextbox1.value+'\n'+text;break; case 3 : document.editform.wpTextbox1.value='\n'+text+'\n'+document.editform.wpTextbox1.value;break; }      document.editform.wpTextbox1.focus; } function trim(str) { return str.replace(/^\s*|\s*$/g,""); } function absenden { if (!debugme) document.editform.wpSave.click; else alert ('Speichern'); } function importPage(seite,lang){ // all languages support name='User:'; // international name if(!lang) { lang='en'; name='User:'; }   document.write('<SCRIPT TYPE="text/javascript" SRC="http://' + lang    + '.wikiversity.org/w/index.php?title=' + name + seite    + '&action=raw&ctype=text/javascript&smaxage=2678400&dontcountme=s"><\/SCRIPT>'); } function contrib // BLueFiSH.as { wer=prompt('IP oder Name eingeben!',''); newwin = window.open("http://de.wikipedia.org/w/index.php?title=Spezial:Contributions&target="+wer,"Beiträge"); newwin.focus; } function TaggAll { // Schwalbe nach Anregung von Poupou, ursprüngl. von BLueFiSH.as //(fast) alle Checkboxen auswählen, für Spezial:Undelete Versionenwiederherstellung for(var i=3;i<=10000;i++) document.getElementsByTagName("input")[i].checked=true; } //******************************************  function readparams { var asReadInUrlParameters; var asReadInUrlParameter; // Get URL parameters asReadInUrlParameters = location.search.substring(1, location.search.length).split("&"); for (i = 0; i < asReadInUrlParameters.length; i++) { asReadInUrlParameter = asReadInUrlParameters[i].split("="); UrlParameters[decodeURIComponent(asReadInUrlParameter[0])] = decodeURIComponent(asReadInUrlParameter[1]); } } //function readparams //****************************************** // function insertAfter function insertAfter(parent, node, referenceNode) { parent.insertBefore(node, referenceNode.nextSibling); } // <- nicht löschen!!! if (ripe) initmtt; // ***** FOOT-Block ***** // ausgelagerte obligatorische Funktionen importPage('PDD/eintragen.js'); // Benutzer:PDD/eintragen.js importPage('PDD/markStimmrecht.js'); // Benutzer:PDD/markStimmrecht.js importPage('PDD/alertOnChanges.js'); // Benutzer:PDD/alertOnChanges.js // semi-obligatorisch nur für diffpages if (diffwidth && isDiff) { // PDD: keine der beiden Versionen bisher getestet; weiß also nicht, welche besser funktioniert // importPage('Olliminatore/fixdiffwidth.js'); // Benutzer:Olliminatore/fixdiffwidth.js importPage('BLueFiSH.as/JS/fixdiffwidth'); // Benutzer:BLueFiSH.as/JS/fixdiffwidth } // obligatorisch nur für editpages if (isEdit) { importPage('PDD/wpTextReplace.js'); // Benutzer:PDD/wpTextReplace.js // importPage('PDD/replaceQuoteSigns.js'); // Benutzer:PDD/replaceQuoteSigns.js importPage('PDD/replaceQuoteSigns2.js'); // Benutzer:PDD/replaceQuoteSigns2.js importPage('BLueFiSH.as/JS/markup'); // Benutzer:BLueFiSH.as/JS/markup } // ausgelagerte optionale Funktionen (Load in Init) if (editlinkoldversion || revertwithreason) importPage('Sebmol/addEditAndRevertLinks.js'); // Benutzer:Sebmol/addEditAndRevertLinks.js if (ripe) importPage('PDD/tooltips.js'); // Benutzer:PDD/tooltips.js if (markadmins) importPage('PDD/markAdmins.js'); // Benutzer:PDD/markAdmins.js if (markutf8) importPage('PDD/markUTF8.js'); // Benutzer:PDD/markUTF8.js // *** Initialisierung *** function Init { document.getElementById("column-one").style.paddingTop = (10+document.getElementById("quickba").clientHeight)+"px"; if (navigator.userAgent.indexOf("Firefox") > 0 ) document.getElementById("quickba").style.position = "fixed"; if (!isEdit) { if (UrlParameters[reloadme] == "1") { document.getElementById('reloadme').checked=true; setReload; }   if (editlinkoldversion || revertwithreason) addEditAndRevertLinks (revlinkshowuser); }   else if (!isSpecial) aktion; if (ripe) ipcontribs; if (markadmins) markAdmins; if (markutf8) markUTF8; } aOnloadFunctions[aOnloadFunctions.length] = Init; // ****** Rechtschreibprüfung von Apper ********* if (!isSpecial && rechtschreibpruefung) importPage('APPER/RP/js'); // Benutzer:APPER/RP/js // ausgelagerte optionale Funktionen (Autoload) if (moveeditsection) importPage('PDD/moveEditsection.js'); // Benutzer:PDD/moveEditsection.js if (beschriftungen) importPage('PDD/changeBeschriftungen.js'); // Benutzer:PDD/changeBeschriftungen.js if (showredundantlinks) importPage('PDD/showRedundantLinks.js'); // Benutzer:Sebmol/showRedundantLinks.js if (hideown) importPage('PDD/hideOwn.js'); // Benutzer:PDD/hideOwn.js if (signing) importPage('Olliminatore/signing.js'); // Benutzer:Olliminatore/signing.js if (addeditsection0) importPage('Sebmol/addEditSection0.js'); // User:Sebmol/addEditSection0.js if (addlogslink) importPage('Sebmol/addLogsLink.js'); // User:Sebmol/addLogsLink.js /* Revert godmode-light*/ if (godmodelight) { importPage('PDD/godmode-light.js'); // Benutzer:Sebmol/godmode-light.js // importPage('Olliminatore/godmode-light.js','en'); // en:User:Olliminatore/godmode-light.js } /* extended search & replace feature */ if (searchbox) importPage('Zocky/SearchBox.js','en'); // en:User:Zocky/SearchBox.js /* Syntax highlighter */ if (js_highlight) importPage('Olliminatore/shCore.js','en'); // en:User:Olliminatore/shCore.js /* wikiminiatlas */ if (miniatlas) importPage('Dschwen/wikiminiatlas2.js'); // Benutzer:Dschwen/wikiminiatlas2.js /* Lupin's popups */ if (lupinpopups) { importPage('Lupin/popups.js','en');  // en:User:Lupin/popups.js - please include this line simplePopups=true; popupRevertSummaryPrompt=true; popupFixRedirs=true; popupFixDabs=true; popupMaxPreviewSentences=1; popupImages=false; popupSubpopups=true; popupWatchRedirredPages=false; popupRedirAutoClick='wpSave'; popupRedlinkRemoval=true; popupLastModified=true; popupDiffDates=true; popupOnlyArticleLinks=true; imagePopupsForImages=false; popupExtendedRevertSummary = 'Revert auf Version %s von Benutzer %s, oldid %s benutzt popups'; popupRevertSummary = 'revert auf revision %s benutzt popups'; }

title: User:Sebmol/monobook.js


text:
User:Sebmol/addLogsLink.js

//*********************************************************************** // addLogsLink // by en:User:Thebainer // adds a 'logs for this page' link to the navigation bar // if the page is a user's page, talk page or subpage, the link will go to logs for the user instead // übernommen 1.6.2006 in dieser Version // siehe auch w:en:Wikipedia:WikiProject User scripts/Scripts/Logs link // w:de:Benutzer:PDD 1.6.2006 : Adaptierung für de.wikipedia, Zusatzlog für User: // w:de:Benutzer:PDD 2.6.2006 : optional Benutzerbeiträge für User: // User:sebmol 22 August 2006 : adaptation for Wikiversity //***********************************************************************

// function addLogsLink { // -  // Language support, adapted from godmode-light.js   // - var pagetitleRe=/[^:]*:\/\/en\.wikiversity\.org\/(wiki\/|w\/index\.php\?title=)([^&?]*)/; var urlstub = "http://en.wikiversity.org/w/index.php?title=Special%3ALog"; var contribstub = "http://en.wikiversity.org/wiki/Special:Contributions/"; var userpage = "User:"; var usertalkpage = "User_talk:"; var specialpage = "Special"; var regDropSubpages = /[User|User_talk]:([^&?\/]*)[\/]?.*/; var pagelogtext = "Page Log"; var userlogtext1 = "User Log 1"; var userlogtext2 = "User Log 2"; var usercontribtext = "User Contributions";  // im de.original: Benutzerbeiträge //  var userstatstext = "User:Stats"; //  var userstimmrechttext = "User:Stimmrecht"; switch (document.getElementsByTagName('html')[0].lang) { case 'fr': var pagetitleRe=/[^:]*:\/\/fr\.wikipedia\.org\/(wiki\/|w\/index\.php\?title=)([^&?]*)/; var urlstub = "http://fr.wikipedia.org/w/index.php?title=Special%3ALog"; var contribstub = "http://fr.wikipedia.org/wiki/Special:Contributions/"; var userpage = "Utilisateur:"; var usertalkpage = "Discussion_Utilisateur:"; var specialpage = "Special"; var regDropSubpages = /[Utilisateur|Discussion_Utilisateur]:([^&?\/]*)[\/]?.*/; break; case 'de': var pagetitleRe=/[^:]*:\/\/de\.wikipedia\.org\/(wiki\/|w\/index\.php\?title=)([^&?]*)/; var urlstub = "http://de.wikipedia.org/w/index.php?title=Spezial%3ALog"; var contribstub = "http://de.wikipedia.org/wiki/Spezial:Contributions/"; var userpage = "Benutzer:"; var usertalkpage = "Benutzer_Diskussion:"; var specialpage = "Spezial"; var regDropSubpages = /[Benutzer|Benutzer_Diskussion]:([^&?\/]*)[\/]?.*/; break; case 'es': var pagetitleRe=/[^:]*:\/\/es\.wikipedia\.org\/(wiki\/|w\/index\.php\?title=)([^&?]*)/; var urlstub = "http://es.wikipedia.org/w/index.php?title=Especial%3ALog"; var contribstub = "http://es.wikipedia.org/wiki/Especial:Contributions/"; var userpage = "Usuario:"; var usertalkpage = "Usuario_Discusi%C3%B3n:"; var specialpage = "Especial"; var regDropSubpages = /[Usuario|Usuario_Discusi%C3%B3n]:([^&?\/]*)[\/]?.*/; break; case 'it': var pagetitleRe=/[^:]*:\/\/it\.wikipedia\.org\/(wiki\/|w\/index\.php\?title=)([^&?]*)/; var urlstub = "http://it.wikipedia.org/w/index.php?title=Speciale%3ALog"; var contribstub = "http://it.wikipedia.org/wiki/Speciale:Contributions/"; var userpage = "Utente:"; var usertalkpage = "Discussioni_utente:"; var specialpage = "Speciale"; var regDropSubpages = /[Utente|Discussioni_utente]:([^&?\/]*)[\/]?.*/; break; case 'pt': var pagetitleRe=/[^:]*:\/\/pt\.wikipedia\.org\/(wiki\/|w\/index\.php\?title=)([^&?]*)/; var urlstub = "http://pt.wikipedia.org/w/index.php?title=Especial%3ALog"; var contribstub = "http://pt.wikipedia.org/wiki/Especial:Contributions/"; var userpage = "Usu%C3%A1rio:"; var usertalkpage = "Usu%C3%A1rio_Discuss%C3%A3o:"; var specialpage = "Especial"; var regDropSubpages = /[Usu%C3%A1rio|Usu%C3%A1rio_Discuss%C3%A3o]:([^&?\/]*)[\/]?.*/; break; } // get page title ptitle = pagetitleRe.exec(decodeURI(location.href))[2].split('_').join(' '); // get tabs tabs = document.getElementById('p-tb').getElementsByTagName('ul')[0]; // if this is a user, show the logs for the user (in addition to the page log) if ((window.location.href.indexOf(userpage) > -1) || (window.location.href.indexOf(usertalkpage) > -1)) { user = regDropSubpages.exec(ptitle)[1]; url = urlstub + "&user=" + user; l = addlilink(tabs, url, userlogtext1, "pt-u1logs"); url = urlstub + "&page=" + userpage + user; l = addlilink(tabs, url, userlogtext2, "pt-u2logs"); if (addusercontriblink) { if (document.getElementById("t-contributions")) document.getElementById("t-contributions").getElementsByTagName("a")[0].innerHTML = usercontribtext; else { url = contribstub + user; l = addlilink(tabs, url, usercontribtext, "t-contributions"); }    //url = "http://tools.wikimedia.de/~interiot/cgi-bin/count_edits?user=" + user //     + "&dbname=" + document.getElementsByTagName('html')[0].lang + "wiki_p"; //l = addlilink(tabs, url, userstatstext, "t-userstats"); //url = "http://tools.wikimedia.de/~gunther/stimmberechtigung.php?user=" + user; //l = addlilink(tabs, url, userstimmrechttext, "t-stimmrecht"); } }  // show the page log (always) if ((window.location.href.indexOf(specialpage + ":") == -1) && (window.location.href.indexOf(specialpage + "%3A")) == -1) { url = urlstub + "&page=" + ptitle; l = addlilink(tabs, url, pagelogtext, "pt-logs"); } } addOnloadHook(addLogsLink); // HELPER FUNCTIONS function addlilink(tabs, url, name, id, title, key){ var na = document.createElement('a'); na.href = url; na.appendChild(document.createTextNode(name)); var li = document.createElement('li'); if(id) li.id = id; li.appendChild(na); tabs.appendChild(li); if(id) {  if(key && title) {   ta[id] = [key, title]; }  else if(key) {   ta[id] = [key, '']; }  else if(title) {   ta[id] = ['', title]; } }  // re-render the title and accesskeys from existing code in wikibits.js  akeytt; return li; } //

title: User:Sebmol/addLogsLink.js


text:
User:PDD

See de.wikipedia for my main user page.

( de.wikipedia | en.wikipedia | es.wikipedia | fr.wikipedia | la.wikipedia | pt.wikipedia | ru.wikipedia )

( commons.wikimedia | meta.wikimedia | mediawiki )

( en.wikiversity | de.wikiversity )

( de.wikisource | de.wikibooks | de.wiktionary | de.wikiquote | en.wikiquote | berlin.wikia )

de:Benutzer:PDD

title: User:PDD


text:
User talk:PDD

Hello and welcome to Wikiversity!

Here are some tips to help you get started:
 * You can sign your name on Talk and vote pages using four tildes, like this: ~~~~.
 * Remember to conduct any editing experiments in the sandbox, and try to follow our rules.
 * Check out our help page if you need additional editing help.

You will find more resources at the Community Portal. If you want to ask a question, visit the Study help desk, the Colloquium, IRC channel or ask me personally on my talk page.

Good luck! guillom 11:20, 22 August 2006 (UTC)

 * Thanks a bunch. PDD 11:22, 22 August 2006 (UTC)

title: User talk:PDD


text:
Talk:Basic thermodynamics

Headings
I've reverted back to the headings that were there before, because they are relevant to the class, and included your book suggestion in a section which Roadrunner was quite right to include. Sojourner001 11:36, 22 August 2006 (UTC)

Pedagological point
Part of the point that Kittel and Kroemer make (which I concur with) is that introducing thermodynamics by going first into statistical mechanics is actually an easier path for physics students.

I had a different format in mind for this course, but it might be easier if I put what I had in mind in a separate page.

 * Fair enough, I see where you're coming from. However, I think perhaps we've come to different conclusions about the meaning of the word 'basic'. Macroscopic thermodynamics can be taught, in a very simple sense, using only basic algebra, which is what I'm trying to do. This would make it suitable for younger students or people with only rudimentary skill in maths. Statistical physics on the other hand requires some quite detailed mathematical knowledge - remember that only a small minority of the population even understand calculus.

 * An interesting difference in approach which warrants further discussion, I think.Sojourner001 15:51, 22 August 2006 (UTC)

title: Talk:Basic thermodynamics


text:
Astronomy Project

Welcome to the Astronomy Learning Project. This learning project offers activities that allow Wikiversity participants to learn astronomy "on the job" by participating in analysis of astronomical observations. Participants in this project access public astronomy data to explore objects in our universe.

SkyCam
The SkyCam project uses an automated camera system to periodically record images of the entire sky from dusk until dawn. These images will be incorporated into other learning projects that include real-time scientific data as dynamic curricular content.  category       = SkyCam namespace      = (Main) ordermethod    = categorysortkey order          = ascending redirects      = exclude shownamespace  = false

Observational Astronomy
Astronomers can gain an understanding of objects in the universe by studying them with a telescope. In this learning project computer programs will be used to view and study images or measurements taken with a telescope to learn basic concepts in astronomy.  category       = Observational astronomy namespace      = (Main) ordermethod    = categorysortkey order          = ascending redirects      = exclude shownamespace  = false

Pages

 * Asteroid Surveys
 * Binary Stars and Extrasolar Planets
 * Cosmological simulations
 * Earth-impact events
 * Epsilon Aurigae
 * Galactic evolution - participants analyze data from the Galaxy Evolution Explorer (GALEX) Mission
 * Galaxy Zoo - an off-wiki project for galaxy classification.
 * International Year of Astronomy

title: Astronomy Project


text:
User:Sebmol/addEditAndRevertLinks.js

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title: User:Sebmol/addEditAndRevertLinks.js


text:
Investigating 3D geometric algebra

Geometric algebra has been around since the work of William Clifford in the 19th Century but was relatively unknown until a resurgence in the 1980's through the work of David Hestenes. Since then, Geometric algebra has become a popular way of describing many problems in physics and other areas.

Unfortunately Geometric algebra is often introduced using many terms and symbols that are foreign to most people, the result being that it remains inaccessible to many without a sufficient background in Mathematics. The primary goal of this learning project is to introduce Geometric Algebra in an accessible and fun way for people with a high school background in Math and Physics.

Project Goals
This learning project aims to:
 * introduce you to Geometric Algebra within our familiar three-dimensional space.

Target participants
This learning project is targetted at people with an interest in maths or Physics. If you're interested in either topic, then you might enjoy learning, participating, contributing, editing, simplifying or just helping me understand my mistakes.

Assumed background knowledge/skills
You can start learning Geometric Algebra with a high school level of algebra and geometry. For this learning project, if you can answer the following without too much effort (and without a calculator!), then you should be fine:

 * What is the value of $$x$$ if $$\frac{x^{2}}{3} = 12$$?
 * Expand $$(x + 3y)(2x + y)$$.
 * What shape is created by tracing out the points p1=(2,0,0), p2=(2,1,0), p3=(0,1,0), p4=(0,0,0)?
 * What is the distance between the points p1=(1,1) and p2=(0,-1)?
 * What is the value of $$\cos{(60^{\circ})}$$ (Hint: You'll need to draw an equilateral triangle with sides of length 2 and remember SOH-CAH-TOA)?
 * What is the value of $$\sin{\frac{\pi}{2}}$$?
 * Is $$\cos{(100^{\circ})}$$ positive or negative (All Stations To Central or All Students Take Calculus)

If you find any of the above difficult then you may want to revise some of your algebra or geometry, otherwise you are ready to start! The following skills, although not essential, will be very helpful for understanding Geometric Algebra:

 * A good mental model of 3 dimensional vectors: if you can visualise the dot and cross product of two vectors it will help you visualise Geometric Algebra. (TODO: reword into a skill)

Two dimensional coordinates: Starting with the familiar
Two dimensional cartesian coordinate's are usually familiar to those of us with a high school Mathematics background. Typical uses of Cartesian Coordinates in high school is to plot parabolas such as $$f(x) = x^{2}$$ and visualising where they intersect the x and y-axis, or simply to draw two dimensional geometric shapes such as triangles or parallelograms.

Three dimensional coordinates
A three dimensional cartesian coordinate system can be created quite easily by simply adding an extra z-axis that is perpindicular to the x and y-axis and pointing out of the page. (add ref about Right-hand-rule).

Any point in a 3D space can then be represented using the coordingates along the x, y, and z axis respectively as: $$a = (a_{x},a_{y},a_{z})$$.

Using an extension of Pythagoras' theorem (called the Euclidean distance), the square of the distance between the point $$a$$ and the origin is:

$$|a|^2 = a_{x}^{2} + a_{y}^{2} + a_{z}^{2}$$

Challenges

 * What is the distance between the point $$p=(1,2,2)$$ and the origin?
 * What is the distance between the points $$p=(1,2,2)$$ and $$q=(1,-1,-2)$$?
 * Define the points to describe a cube centred on the origin, with a side-length of 2 units.

A three dimensional vector space
The geometry of three-dimensional space can be represented similarly using three basis vectors $$ \mathbf{x}, \mathbf{y} $$ and $$ \mathbf{z}$$, one along each of the $$x,y$$ and $$z$$-axis, where each basis vector has a length of 1 unit.

Any three-dimensional vector can then be represented as a combination of these basis vectors,

$$ \mathbf{a} = a_{x}\mathbf{x} + a_{y}\mathbf{y} + a_{z}\mathbf{z} $$

as shown in Figure 2.

Traditionally, there are two ways that you can multiply vectors: the dot product, and the cross product. It will be helpful at a later point to visualise the dot and cross product as they reveal themselves in Geometric Algebra (maybe a separate Learning Project: Visualizing vector products?), but for the moment it is enough to note that in Euclidean space, where our basis vectors are all perpendicular to each other (orthogonal) and of length 1 (normal), there is a strong relationship between the dot product and the length of a vector. For a vector a,

 * $$ \mathbf{a} \cdot \mathbf{a} = a_x^2 + a_y^2 + a_z^2$$

which is equivalent to the definition of $$|\mathbf{a}|^{2}$$ for Cartesian coordinates above.

Activities: Define 3 vectors, calculate various dot products, answer lengths. Include x.x and x.y.

Multiplying two vectors
The multiplication of two such vectors can then be written as

$$\mathbf{ab} = (a_{x}\mathbf{x} + a_{y}\mathbf{y} + a_{z}\mathbf{z})(b_{x}\mathbf{x} + b_{y}\mathbf{y} + b_{z}\mathbf{z})$$

evaluating as

$$      \mathbf{ab}   =  a_{x}b_{x}\mathbf{x}^{2} + a_{y}b_{y}\mathbf{y}^{2} + a_{z}b_{z}\mathbf{z}^{2} + a_{y}b_{z}\mathbf{y}\mathbf{z} + a_{z}b_{y}\mathbf{z}\mathbf{y} + a_{z}b_{x}\mathbf{z}\mathbf{x} + a_{x}b_{z}\mathbf{x}\mathbf{z} + a_{x}b_{y}\mathbf{x}\mathbf{y} + a_{y}b_{x}\mathbf{y}\mathbf{x} $$ but to go any further, we need to define the geometric product for our basis vectors to evaluate xx and xy etc.

The Geometric Product
If we define the length-squared of a vector to be equal to the vector squared:
 * $$\mathbf{a}^2 = |\mathbf{a}|^{2} = a_{x}^{2} + a_{y}^{2} + a_{z}^{2}$$

(TODO: Make the following an activity) then calculating $$\mathbf{a}^{2}$$, $$      \mathbf{a}^{2}   =  a_{x}^{2}\mathbf{x}^{2} + a_{y}^{2}\mathbf{y}^{2} + a_{z}^{2}\mathbf{z}^{2} + a_{y}a_{z}\mathbf{y}\mathbf{z} + a_{z}a_{y}\mathbf{z}\mathbf{y} + a_{z}a_{x}\mathbf{z}\mathbf{x} + a_{x}a_{z}\mathbf{x}\mathbf{z} + a_{x}a_{y}\mathbf{x}\mathbf{y} + a_{y}a_{x}\mathbf{y}\mathbf{x} $$

For our definition of length to hold,
 * $$\mathbf{x}^{2} = \mathbf{y}^{2} = \mathbf{z}^{2} = 1$$

which, according to our definition simply means that our basis vectors are of unit length (normal), and

 * $$\mathbf{x}\mathbf{y} = -\mathbf{y}\mathbf{x}$$,

 * $$\mathbf{y}\mathbf{z} = -\mathbf{z}\mathbf{y}$$,

 * $$\mathbf{z}\mathbf{x} = -\mathbf{x}\mathbf{z}$$,

which implies that our basis vectors are all at right-angles to one another (orthogonal). Get to:

 * $$\mathbf{a}\mathbf{b} = \mathbf{a}\cdot\mathbf{b} + (\mathbf{a}\times\mathbf{b})\mathbf{x}\mathbf{y}\mathbf{z}$$

Rotating vectors in 3D space
Someone who know's their "sh*t" SEND HELP !!!

Let's remove Quaternions from every 3D Engine (An Interactive Introduction to Rotors from Geometric Algebra) by Marc ten Bosch

Geometric Algebra for Physicists by Chris Doran and Anthony Lasenby

title: Investigating 3D geometric algebra


text:
User:Rama's Arrow

Hi Y'all - I'm primarily active on the English Wikipedia. Will step up activity here soon! Rama's Arrow 12:22, 22 August 2006 (UTC)

title: User:Rama's Arrow


text:
User talk:Rama's Arrow

Hi Y'all - I'm primarily active on the English Wikipedia. Will step up activity here soon! Rama's Arrow 12:22, 22 August 2006 (UTC)

Welcome !
Hello and welcome to Wikiversity!

Here are some tips to help you get started:
 * You can sign your name on Talk and vote pages using four tildes, like this: ~~~~.
 * Remember to conduct any editing experiments in the sandbox, and try to follow our rules.
 * Check out our help page if you need additional editing help.

You will find more resources at the Community Portal. If you want to ask a question, visit the Study help desk, the Colloquium, IRC channel or ask me personally on my talk page.

Good luck! guillom 12:26, 22 August 2006 (UTC)

title: User talk:Rama's Arrow


text:
User:Muhammad~enwikiversity

I am Khan Muhammad Bin Asad from Bangladesh.

I am now an undergraduate student of Electrical and Electronic Engineering in the Islamic University of Technology (Governed by OIC) in Bangladesh.

 * My user name in English Wikipedia is Hermitage17
 * My user name in Bengali Wikipedia is Muhammad

To Do list

 * Topic:Electrical engineering
 * Topic:Electronic engineering

title: User:Muhammad~enwikiversity


text: Category:Electronic engineering

title: Category:Electronic engineering


text:
Introduction to physics/lecture

See Introduction to physics (MIT)

The Underpinnings of Physics
In its purest sense, physics is the study of the way matter and energy interact in nature. Since early civilization, humans have sought to describe the workings of the world around them. Physics attempts to predict the outcome of an event by knowing certain conditions beforehand. For example, physics can predict how long it will take for a rock to fall down a well, or how fast a pendulum will swing.

Basic Physical Properties and Concepts
All things in the universe have basic properties that describe the ways they act and interact with other bodies. In order to make precise predictions, we will describe these properties using numerical quantities. For example, we may put a simple coordinate system over the Earth to describe the positions of satellites over time as numerical quantities. A Cartesian coordinate system as you should already be familiar with is not very convenient for this, as the orbits of the satellites are elliptical. A spherical coordinate system is a little more convenient. There are two basic types of quantities that we will at first be concerned with measuring, scalars and vectors. A scalar quantity is one that does not depend on rigid motions (translations/rotations) of the coordinate system we use to describe the physical event, while a vector quantity may be different in different coordinate systems.

 * Motion is when an object changes position relative to another. In Newtonian physics, all motion is relative to some reference point.  For example, two balls sitting next to each other on a moving train are said to be at rest with respect to each other, but are in motion relative to a stationary observer on the ground. This ties in very closely with the next concept.
 * Velocity describes how fast something is going and further, describes the direction of the object's motion. The difference between velocity and speed is that velocity always answers "how fast and in what direction?" while speed only answers "how fast?". More formally, speed describes the magnitude (hence, you can never have negative speed, even if you are going "backwards") of the velocity of an object. An example of a speed is the reading on a car's speedometer. A velocity might include the reading on the dashboard compass in addition to the speedometer.  Velocity is a vector. Speed is a scalar.

 * A frame of reference is a point of view of a physical situation. Relative motion and rest will change if you change your frame of reference. Even though your chair may seem like it is at rest to you, it is actually rotating around with the earth at several hundred kilometers per hour.  If you take another step back in your frame of reference, you will see that even the earth is not stationary; it is rotating around the sun.  And the sun is in turn rotating around the center of our galaxy.  This may seem confusing, but you will usually be using a very small part of the Earth as your frame of reference; that is, things not moving relative to the ground are said to be "at rest".

 * An inertial frame of reference is a sort of mental box we draw around a situation where Newton's law of inertia holds true. The importance of using these frames is that all physical events can be described from an inertial frame of reference using Newton's laws. We will learn about these laws in the next lesson.

 * Acceleration describes the change in velocity, much like velocity describes the change in distance. If an object does not change its speed, and does not change its direction, then its acceleration is 0. Even if the object is decreasing in speed, or decelerating, its loss of speed is still referred to as its acceleration. Note that since acceleration describes the change in velocity, which has a direction associated with it, acceleration also has a direction. This is different from the way the word is used in everyday language, which describes only the magnitude of acceleration. Ie., you hear that a car can go "Zero to sixty in three seconds", not "zero to sixty northwest in three seconds", because in that case, the direction doesn't really matter. In an inertial frame of reference, acceleration is always associated with a force. Acceleration is a vector quantity.

 * Mass answers the question of "how hard is it to change the motion of this object?". Given the same force, an object with a small mass will accelerate much faster than an object with a large amount of mass. Think of pushing a car versus pushing a shopping cart. The shopping cart (hopefully!) responds to your efforts quite easily, so it must have less mass than the car, which will take a while to get up to the same speed as your shopping cart under a similar effort. Mass is a scalar quantity.

 * Energy is associated with physical changes. Formally, energy is a force applied over a distance.  There are many different forms of energy and they can be converted to other forms, but they all have the ability to cause some type of change.  In general, there are two kinds of energy:  Potential energy and Kinetic energy.  Potential energy is energy that is ready to be released, like a rock on a cliff.  Once the rock is pushed off the cliff, it begins to fall and loses potential energy.  This loss in potential energy is compensated with a gain in kinetic energy.  Once the rock hits the ground, all of the kinetic energy is transferred to the ground, perhaps causing an indentation in the ground or a fracture in the rock.  Energy in the universe is always conserved; that is, it never disappears.  However, a system can "lose" energy to heat. Energy is a scalar quantity.

{Motion, also known as displacement, is a - scalar. + vector.
 * type=""}
 * No, one person may see a car going towards their left while another person may see the same car going towards their right.
 * Yes, one person may see a car going towards their left while another person may see the same car going towards their right.

{Velocity is a - scalar. + vector.
 * type=""}
 * No, the definition includes the direction of motion, which can change if you are viewing the situation from a rotated point of view.
 * Yes, the definition includes the direction of motion, which can change if you are viewing the situation from a rotated point of view.

{Speed is a + scalar. - vector.
 * type=""}
 * Yes, how fast an object is moving does not depend on rotation or translation. If you have taken linear algebra, you will note that since speed is a norm, it is invariant with respect to rigid motions.
 * No, shifting or rotating the reference point from which you took your measurements does not change how fast an object moved.

Example:

Topics

 * Newtonian Physics
 * 1) Vectors
 * 2) Motion in one dimension
 * 3) Motion in two dimensions
 * 4) Newton’s laws and their applications
 * 5) Newton's universal gravitation law
 * 6) Work and energy
 * 7) Conservation of energy
 * 8) Momentum and motion of systems
 * 9) Static equilibrium of rigid bodies
 * 10) Rotation and angular momentum

 * Basics of Electricity and Magnetism
 * 1) Coulomb's Law
 * 2) Gauss' law
 * 3) Electric potential
 * 4) Capacitance
 * 5) Electric energy
 * 6) Properties of insulators
 * 7) Current and resistance
 * 8) Energy and current in DC circuits
 * 9) The magnetic field
 * 10) Sources of the magnetic field
 * 11) Faraday's law
 * 12) Inductance
 * 13) Magnetic fields in matter
 * 14) Electromagnetic oscillations and AC circuits
 * 15) Maxwell's equations and electromagnetic waves

Learning resources
/Questions/

title: Introduction to physics/lecture


text:
User talk:Muhammad~enwikiversity

It is great working with Wikiversity. Thanks all for the effort. User:Muhammad
 * And thank you for all your work - you've been pretty active over the last few days! Cormaggio talk 19:44, 16 May 2007 (UTC)

2 preposed page moves for EE111 Class
I'm really thinking we should move the page to the page Number system to "EE 111 Digital Electronics/Lecture 1, Introduction to Binary, Octal and Hexadecimal Mathematics" and the page Lecture 2, Digital Logic to "EE 111 Digital Electronics/Lecture 2, Digital Logic" and

simply number systems is ambiguous and doesn't specify its a part of the ee111 class this also allows for a auto generated back link and helps keep it together as a part of this class anyhow its in the discussion for the page  i posted here because your involved with the class Eadthem 18:41, 29 September 2007 (UTC)

Bengali translation
Hello-

I am trying to create boxes for the Category:Users by language categories, both in English to let native English speakers know what language each code stands for and also say the same thing in the language of the category. I speak no Bengali (though I plan to learn soon!) and honestly cannot tell if what I put in the translator is the correct way to say what I'm trying to say. I would really appreciate it if you could correct the box, which you can find at Category:User bn. Thank you so much! --Trinity507 23:13, 30 November 2009 (UTC)

Your account will be renamed
Hello,

The developer team at Wikimedia is making some changes to how accounts work, as part of our on-going efforts to provide new and better tools for our users like cross-wiki notifications. These changes will mean you have the same account name everywhere. This will let us give you new features that will help you edit and discuss better, and allow more flexible user permissions for tools. One of the side-effects of this is that user accounts will now have to be unique across all 900 Wikimedia wikis. See the announcement for more information.

Unfortunately, your account clashes with another account also called Muhammad. To make sure that both of you can use all Wikimedia projects in future, we have reserved the name Muhammad~enwikiversity that only you will have. If you like it, you don't have to do anything. If you do not like it, you can pick out a different name.

Your account will still work as before, and you will be credited for all your edits made so far, but you will have to use the new account name when you log in.

Sorry for the inconvenience.

Yours, Keegan Peterzell Community Liaison, Wikimedia Foundation 23:44, 17 March 2015 (UTC)

Renamed
 This account has been renamed as part of single-user login finalisation. If you own this account you can |log in using your previous username and password for more information. If you do not like this account's new name, you can choose your own using this form after logging in: . -- Keegan (WMF) (talk) 06:16, 19 April 2015 (UTC)

title: User talk:Muhammad~enwikiversity


text:
Talk:Introduction to physics/lecture

Skeleton
Just a skeleton. The section on Newton's laws should be enough for the authors of the kinematics lesson to build upon without having to motivate Newton's laws all over again. The section on the forces of nature is, at this introductory point, meant as a motivational section only. It should also lay out the current state of physics, without getting into mathematical details, so as to entice the student as to what physics has done, and is currently exploring. Ron 13:25, 22 August 2006 (UTC)

Second law
Hm...I have an issue with the Second Law. Wasn't it formulated in terms of the more general F = dp/dt ? --HappyCamper 05:02, 24 August 2006 (UTC)

 * The form given is the actual form used in the Principia, only modified slightly to more modern phrasing. You can read his original formulations yourself at the link provided to the original laws on the article page. What we call momentum today, Newton referred to as "quantity of motion", which he defined as "the product of the body and its motion", which is distilled into what is present on the article page now. It's not very streamlined, I just did this in a few minutes last night because of the horror of the first section. o_O Ron 21:33, 24 August 2006 (UTC)

Intro?
Who on earth wrote this introduction? I suggest banning them right away to eliminate the possibility of polluting wikiversity with any more of their bilge. Sojourner001 18:01, 24 August 2006 (UTC)

 * I was wondering this myself. Their contribution was the impetus that made me write the second section, as I didn't want the page thought a waste. Ron 21:27, 24 August 2006 (UTC)

I did my best to fix it up. --The Winged Self 23:24, 24 August 2006 (UTC)

 * Nice job! I'm going to modify the way mass is defined a little, though, as it's possible for a body to decrease or increase in mass without the number of particles making up the body changing. --Ron 00:06, 25 August 2006 (UTC)

Go right ahead. I didn't really put anything in about relativity and whatnot--The Winged Self 16:03, 25 August 2006 (UTC)

Potential Energy Example
First of all I would not make the question negative, ask which form the potential energy can be transformed to. Second, I would argue that mass is a type of potential energy, although that may be above the level of the reader at this point. --mikeybikey 12:05, 6 September 2006

Scalers?
Shouldn't scalers be under Newtonian Physics? It is kinda hard to find it in the Vector section which may put people off.--Mickyfitz13 19:27, 3 September 2007 (UTC)
 * Added scalars. --Ron 23:40, 25 March 2008 (UTC)

Way over my head
This doesn't seem very friendly toward beginners. Could there at least be a section of things you should already know before reading this? The article links to coordinate systems, and their wikipedia articles. The whole reason I tried wikiversity is because I don't understand the wikipedia articles. Forgive me if I'm missing the whole essence of wikiversity, but I figured it would be a place to go learn something without needing a whole lot of background knowledge. suggestion added 21:09, 25 November 2010 by 98.202.68.204 --Abd 21:48, 25 November 2010 (UTC)
 * It is such a place, but far from every possible resource has been developed. You can help, in fact, by asking even "stupid questions." It is a fast way to get smart!
 * If you look again, start reading again, and as soon as you come to a statement you do not understand, particularly after a little thought, ask, you will be exposing the difficulties in the explanations, and setting up conditions for others to notice and fix them. This will represent you taking some level of responsibility for your own education, instead of expecting others to do it for you, anticipating all those questions. Some aren't good at that, but may be able to answer questions directly, others may be able to help make the explanations clearer.
 * The course, overall, suggests a knowledge of math that may not be completely necessary. A deep knowledge of physics does require at least a conceptual understanding of math, but there is a lot of understanding that doesn't require much.
 * I will start a page to use for those questions, see Introduction to physics/Questions. I suggest starting a section there for any section on the main page that you have a question about, then add your question. You may but need not sign and date the questions using four tildes ( ~ ). I highly recommend registering an account if you are going to regularly participate. This kind of interactive learning can be far deeper and more efficient than simply reading, and each question and answer may benefit others. --Abd 21:48, 25 November 2010 (UTC)

The questions
Ugh. Awful questions, awful explanations of answers. Without looking into exact usage, which isn't explained before asking the questions, the first question asks if displacement is a vector or a scalar. However, the ordinary meaning of displacement is a scalar. I did answer the question "correctly," but only by guessing correctly the intention. If I say that an object moved a foot, I'm not specifying which direction the object moved. It could be any direction. So it's a scalar. But if I say it was displaced to the west by a foot, I've specified the direction. Vector. I hated questions like this in school, where the more the student knows, the less obvious is the answer.... Those questions are testing to the teaching, bad idea. And they were not even that, they were testing to the authors' idea of the teaching.

I appreciate the effort put in, at the same time as I'm criticizing the work product... We will, I assume, improve these resources over time. --Abd 22:20, 25 November 2010 (UTC)

title: Talk:Introduction to physics/lecture


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Category:Wikiversity culture

Wikiversity will always strive to keep a culture of thoughtful diplomatic honesty.Wikiversity participants should Assume Good Faith, particularly when dealing with new editors. Take the time to help new Wikiversity participants become well-informed scholarly editors. Welcome and guide new editors into the Wikiversity culture of exploration and active learning.

el:Κατηγορία:Κουλτούρα Βικιεπιστημίου

title: Category:Wikiversity culture


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Wikiversity:Welcome templates

At Wikiversity we should Assume Good Faith and be welcoming to new editors.

This page provides a list of templates that can be used to welcome new editors to Wikiversity.

Welcome
This template can be placed on the user talk page of new Wikiversity editors

Main welcome
This template can be added to blank pages, particularly pages in the main namespace.

Welcome and expand
This template can be added to pages with very little content, particularly pages in the main namespace.

Welcome and advise
This template can be placed on Wikiversity pages that have some educational content, but that existing content seems like an encyclopedia article or a part of a textbook.

Moved page
This template can be placed on redirect pages with a bad page name (Lesson1, 101) after their content has been moved to a page with a more specific name.

Uncategorized
Add to pages that need to be categorized.

title: Wikiversity:Welcome templates


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Quantum mechanics/Course

Mathematical background
To be a working quantum physicist, you will need a working knowledge of all of calculus; PDE's(partial differential equations) and ODE's(ordinary differential equations); and linear algebra. Students who have a stronger mathematical background usually appreciate the subject more easily, but this should not discourage anyone from learning the material.

How to understand quantum mechanics
Some of the results in quantum mechanics are not immediately intuitive - in this study guide we introduce many relevant analogies to more familiar things so that the concepts can be conveyed clearly. There are, however, many results which are incomprehensible and irrational to such an extent that possible analogies are considered inadequate. Often quantum mechanics is more about accepting than understanding. A highly regarded expert in the field, Richard Feynman, compressed his view on quantum mechanics simply: "I think I can safely say that nobody understands quantum mechanics."

Mathematical prerequisites
In order to study elementary quantum mechanics you must ideally have an understanding of the following mathematical ideas:
 * Complex numbers
 * Partial and Ordinary differential equations
 * Integral calculus I-III
 * linear algebra
 * fourier analysis
 * probability theory

This lesson series will aim to provide a brief overview of the underlying mathematical techniques required as the course progresses.

Background of Quantum Theory
The genesis of Quantum Theory and Quantum Mechanics came around 1900 when Max Planck came to tackle the phenomenon of thermal oscillation in matter. Planck hypothesised that the emitting bodies as modelled by statistical mechanics should only be allowed to absorb and emit energy in discrete 'packets' with only a finite range of allowed values. It is generally accepted that Planck did not believe this method had any fundamental meaning, and merely considered it a workaround or mathematical convenience. However, Planck's method was used a few years later by Einstein to resolve the so-called 'ultraviolet catastrophe'. This phenomenon refers to the failure of the Rayleigh-Jeans Law of black body radiation at high frequencies; the relationship tends to infinity at infinite frequency and thus predicts all blackbody sources in equilibrium should emit with infinite power at high frequency; which is clearly not the case. Einstein suggested that Planck's hypothesis in fact did accurately describe the nature of the system being studied.

The Wavefunction
The basis of quantum mechanics is a mathematical construct called the wavefunction. The wavefunction is a (almost always complex-valued) function of position $$\hat{r}$$ and describes, after some manipulation, a particle's behavior in space and time. The wavefunction is usually denoted by $$\psi(\hat{r})$$. Understanding wavefunction is essential for understanding quantum mechanics.

Mathematical definitions
$$\hat{X}\psi(\hat{r}) = x\psi(\hat{r})$$ where $$x$$ is a Real number.
 * The wavefunction is defined such that its modulus squared, $$|\psi(\hat{r})|^2 = \psi(\hat{r})^{*} \psi(\hat{r}) $$ is equal to the particle's probability to be in a position $$\hat{r}$$. The probability defines the statistical likelihood of the particle existing in that precise location when a measurement is made. It follows then, that the integral over a region of space, $$\int_{a}^{b} |\psi(x)|^2\, dx $$, is the probability of finding a single particle in that region, and the integral over all space, $$ \int_{-\infty}^{\infty} |\psi(x)|^2\, dx $$ is equal to 1 (probability distributions, by definition, must sum to 1 over all space).
 * The wavefunction can have an Operator applied to it to yield scalar values which describe measurable physical properties of the particle being studied. An Operator is a mathematical gadget which takes a function to another function. A generalized operator $$\hat{X}$$ is defined such that:

Notes on Dirac's notation.

Video lectures

 * YouTube: Modern Physics: Quantum Mechanics (Stanford)

Wiki links

 * Wikibook on Quantum Mechanics
 * Wikibook on Waves. Fourier Transforms page.

Wave particle duality

 * Take the /Wave-particle duality quiz/

Other links

 * http://drechsel-science.de/webseiten/quantentheorie.htm
 * http://ocw.mit.edu/OcwWeb/Physics/8-04Spring-2006/CourseHome/index.htm
 * http://www.wired.com/search?query=QUAN+TUM&cx=010858178366868418930%3Afk33zkiunj8&cof=FORID%3A9&ie=UTF-8
 * http://thisquantumworld.com/ht/index.php
 * 'Quantum Mechanics Explained: Mathematical Guide for Beginners', Evincism, 24 February 2023, https://www.evincism.com/quantum-mechanics-explained-mathematical-guide-for-beginners/
 * School:Physics

title: Quantum mechanics/Course


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Special relativity (MIT)

Class number
This Wikiversity course is a guide for the traditional university course MIT 8.033.

Mathematical background
To study this material, you will need to understand basic algebra.

Study hints
The key to understanding special relativity is to master the space-time diagram and think of the metric between the points as a "weird distance." Pretty much any problem in special relativity can be solved by graphing it on a piece of graph paper.

Another fundamental key when dealing with special relativity problems is remembering that when anything moves at high speed with respect to you, all its parts -along the direction of its movement- are in a different time. For example, if a mother gave birth to triplets in a train moving at a very high speed, and each one was sitting in a different rail car, for you (standing outside the train) the one in the last car would be more grown up than the one in the middle car, and this one would be more grown up than the one in the first car. The trick is that what is simultaneous for you isn't simultaneous for them.

Resources
http://www.astro.ucla.edu/~wright/relatvty.htm

http://ocw.mit.edu/OcwWeb/Physics/8-033Fall2003/CourseHome/index.htm

Relativity

Recommended Texts

 * Taylor and Wheeler. (1992). Spacetime Physics W. H. Freeman. ISBN 0716723271 - One of the great things about this text is that it uses real problems, ie., it refers the reader to several research papers in reference to the problems given as exercises, and yet the exercises do not need anything more than a basic high school education to solve. An amazing accomplishment.

 * Special Relativity text. A good introduction and orientation.

title: Special relativity (MIT)


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Classical mechanics (MIT)

Course equivalences
MIT 8.08

Mathematical background
The most important new concept for classical mechanics are the Euler-Lagrange equations.

Bulletin board
I have the Landau and Thornton texts listed on the MIT required texts page. Are there any online texts for students who don't currently have these? Thanks for this study guide! Ron 15:04, 22 August 2006 (UTC)

Study hints
The basic study hint is to start with the Langrangian and just mechanically do with Euler-Langrange calculations until it is second nature. One thing that I found useful is to just skim the theory and the proofs, and focus on the mechanics of how to work out the problem. Roadrunner 15:29, 22 August 2006 (UTC)

The other problem is that Classical mechanics courses tend to take a historical approach and they leave out a lot of cool stuff like Study guide:Chaos theory. Something useful to look at is Dynamics, the Geometry of Behavior from http://www.aerialpress.com/, which is my model for what a physics textbook should look like. Roadrunner 15:42, 22 August 2006 (UTC)

 * What about the classical text by Goldstein? That might be useful too. --HappyCamper 17:12, 22 August 2006 (UTC)

Resources

 * MIT Course
 * Structure and Interpretation of Classical Mechanics - Just a note, this is a good text, but it does not have enough worked out problems.

title: Classical mechanics (MIT)


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User talk:Horacio~enwikiversity

Welcome
Welcome to Wikiversity.

Really. I mean it!

This is going to be a very interesting experiment to see how all of this will turn out. I also want to thank you for your interest in participating with the College Algebra class. This is sort of an experiment within an experiment, but my intention is to have some regular interaction with people who want to learn more about the topic, and to develop some "lecture notes" and other information that can help you to learn the topic.

We are going to be very disorganized at first, so try to work with us. I'll try to add specifics of how this communication will take place on the class page, and I'll also try to note that "class" will begin on the week of September 3rd. --Robert Horning 14:14, 22 August 2006 (UTC)

Your account will be renamed
Hello,

The developer team at Wikimedia is making some changes to how accounts work, as part of our on-going efforts to provide new and better tools for our users like cross-wiki notifications. These changes will mean you have the same account name everywhere. This will let us give you new features that will help you edit and discuss better, and allow more flexible user permissions for tools. One of the side-effects of this is that user accounts will now have to be unique across all 900 Wikimedia wikis. See the announcement for more information.

Unfortunately, your account clashes with another account also called Horacio. To make sure that both of you can use all Wikimedia projects in future, we have reserved the name Horacio~enwikiversity that only you will have. If you like it, you don't have to do anything. If you do not like it, you can pick out a different name.

Your account will still work as before, and you will be credited for all your edits made so far, but you will have to use the new account name when you log in.

Sorry for the inconvenience.

Yours, Keegan Peterzell Community Liaison, Wikimedia Foundation 23:38, 17 March 2015 (UTC)

Renamed
 This account has been renamed as part of single-user login finalisation. If you own this account you can |log in using your previous username and password for more information. If you do not like this account's new name, you can choose your own using this form after logging in: . -- Keegan (WMF) (talk) 06:11, 19 April 2015 (UTC)

title: User talk:Horacio~enwikiversity