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Welcome to Wikiversity
with 26,085 learning resources and growing.
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"The mind is not a vessel to be filled, but a fire to be kindled." -Plutarch (discuss)

Wikiversity is a Wikimedia Foundation project devoted to learning resources, learning projects, and research for use in all levels, types, and styles of education from pre-school to university, including professional training and informal learning. We invite teachers, students, and researchers to join us in creating open educational resources and collaborative learning communities. To learn more about Wikiversity, try a guided tour or start editing now.

Today's Featured Project
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In the observational astronomy project, astronomers can gain an understanding of objects in the universe by studying them with a telescope. Observational astronomy is the process of collecting and analyzing data to learn about these objects. In this learning project a computer program is used to view and study images taken with a telescope to learn basic concepts in astronomy. This is part of the astronomy project.

Community
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Start editing, join the discussion (on the colloquium) and become part of the Wikiversity community! For real-time advice or assistance, you can join our Wikiversity's IRC channel, or our mailing list, or add learner questions on our help desk. The community portal is a listing of notices, projects, activities, guidelines and resources, and learn more about us through the history of Wikiversity.
Van de Graaf Generator
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1. hollow metallic sphere (with positive charges)
2. electrode connected to the sphere, a brush ensures contact between the electrode and the belt
3. upper roller (for example in plexiglass)
4. side of the belt with positive charges
5. opposite side of the belt with negative charges
6. lower roller (metal)
7. lower electrode (ground)
8. spherical device with negative charges, used to discharge the main sphere
9. spark produced by the difference of potentials
Diagram of a Van De Graaf generator. Click on the image for a full size version which you can freely re-use and modify. Print it and use it for your lessons, integrate it into your pages on Wikiversity, or use it in other learning resources and websites. Use the links below to find more images like this one.

Electrostatics images
Mechanics images - Electromagnetism images - Optics images - Atomic physics images
Images relating to physics in general


This image is a part of the Educational Media Awareness Campaign, raising awareness among educators about the availability and usage of millions of free internet media in education.
Development
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At Wikiversity we are committed both to conventional learning patterns and resources, and to innovation and experimentation. Wikiversity is open to reconceptualising how web education can occur and how open educational resources can be made, and we are open to new ideas about the use of the Mediawiki environment for learning and research. Check out and help develop our learning projects and how learning works on Wikiversity, see how Wikiversity can help you, and explore how to get involved and start adding content. The sandbox server project is also a centre of learning experimentation.

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Wikiversity's sister projects

Wikiversity is hosted by the Wikimedia Foundation, a non-profit organization that also hosts a range of other multilingual and free-content projects:

Wikipedia Wikipedia
Free-content encyclopedia
Wiktionary Wiktionary
Dictionary and thesaurus
Wikiquote Wikiquote
Collection of quotations
Wikinews Wikinews
Free-content news
Wikispecies Wikispecies
Directory of species
Wikibooks Wikibooks
Free textbooks and manuals
Wikisource Wikisource
Free-content library
Commons Commons
Shared media repository
Meta-Wiki Meta-Wiki
Wikimedia project coordination
MediaWiki MediaWiki
Free software development
Wikidata Wikidata
Free knowledge base
Wikivoyage Wikivoyage
Open travel guide