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HandWiki

Wiki Encyclopedia of Knowledge

HandWiki is a wiki encyclopedia for collaborative editing of articles on computing, science, technology and general knowledge. Registered users can post and edit articles, books, manuals and tutorials. Login or request account using the top-right menu. Read more here.

News

• Nov 1, 2025: Updated. Re-register!
• Feb 10, 2024: >2M full articles
• Apr 30, 2023: Search in Encyclone
• Feb 7, 2022: Part of Encyclosphere network
• Nov 5, 2022: Included in EncycloReader
• Apr 26, 2022: References can be imported from arXiv.org.

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Featured Article

Synchronicity is a concept first introduced by psychologist Carl G. Jung to describe circumstances that appear meaningfully related yet lack a causal connection. In contemporary research, synchronicity experiences refer to one's subjective experience that coincidences between events in one's mind and the outside world may be causally unrelated to each other yet have some other unknown connection...

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Recent Pages

1. Biology:Lembeja
2. Biology:Planopleura
3. Biology:Thoracostomopsidae
4. Biology:Ctenus parvoculatus
5. Biology:Pungent leek orchid
6. Biology:Macrovipera razii
7. Biology:Aorangia singularis
8. Biology:Heterodontonyx bicolor
9. Biology:Pelonides quadripunctata
10. Biology:Longfengshania
11. Biology:Micranthus alopecuroides
12. Biology:Lecanora epibryon

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Did You Know?

🔗 Designed World is a YouTube channel dedicated to unexplained phenomena and unusual observations. Submit your favorite remarkable cases related to unexplained, and the channel will create a visual short story. Read more and subscribe

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You can publish encyclopedic articles and blogs using a decentralized publishing platform called EnHub (enhub.org). The articles can also be saved and downloaded using the ZWI file format.

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6174 is the Kaprekar's constant, but it is often called "magic number". At first glance, the number 6174 looks like any other number, but .. Read More

Featured Learning Resources

Life: A visual story: "Unknowable Universes". This universe is not only finely tuned for your existence — it has astonishing math features that go far beyond what is necessary for life.

Technology: A visual story: What does it take to build a UFO? by the History Channel.

Programing: The Definitive Guide to Jython. Python for the Java Platform.

Software: DataMelt - a free software for numeric computation, mathematics and statistics.

New books: The Designed World of Information: Unveiling the Incredible Realm Beyond (Genres: science; spirituality; religion).

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Recent Blogs

How Does Playing Games Contribute to Mental Wellness?
Gaming has evolved so much that it is no longer only a hobby. Due to our busy lives, games are now often used to help people clear their minds and feel relaxed... Read more

Can you hold 70,000 books in one hand?
If you are reading this blog, you are a certifiable smart person and probably know about Project Gutenberg (PG)... Read more

Here are articles on abstract concepts related to computing in a broad sense. Such topics unify foundations of mathematics with computations using computers, and can be applied to many branches of science, finance or technology. Mathematics is an essential tool in computing, but computers are used as a main tool in mathematical problem solving. These topics cover all branches of mathematics, statistics, computer science, data analysis, machine learning and information science.

The portals "Natural nd Formal Sciences" are dedicated to the study of natural phenomena and physical world.

Here are the portals dedicated to the study of aspects of human society and culture. This group of topics includes arts, practices and procedures used to maintain state of physical, social and mental well-being.

Here are articles dedicated to various technology topics (building complex devices and machines), software (computer programs and operating systems) and finance (study of money and investments).

Here are articles about organizations, companies and people contributing to research and technology. They serve to support the citations in HandWiki's research articles and books.

Here are books, monographs and tutorials. Books and manuals are organized as collections of articles, and typically span many wiki pages. A monograph discusses a detailed study of a single specialized subject. Monographs use a single wiki page.

Here are in-depth encyclopedias organized according the scientific fields supported in HandWiki.

This section contains the description of the HandWiki encyclopedia project.

• About the HandWiki encyclopedia
• Description of HandWiki formatting and editing tricks
• Copyright statements of HandWiki articles