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HandWiki
Encyclopedia of Science and Computing

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

News

Feb 7, 2022: Part of Encyclosphere Network
Nov 5, 2021: Included in EncycloReader
Oct 7, 2021: Dark mode (see the top-right switch)
Jun 20, 2021: Adding biology stubs (with 1 reference)
Apr 26, 2021: References can be imported from arXiv.org.
Apr 2, 2021: Use HandWiki sandbox for drafts.
Mar 24, 2021: Export to ZWI file format.
Dec 27, 2020: Part of factseek.org and encyclosearch.org.
Dec 20, 2020: Deployment of a fast search engine.
Aug 19, 2020: Restored 15200 scholarly articles removed from Wikipedia in 2018 & 2019.

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Featured Article

Nikola is an American company that develops zero-emission vehicle concepts since 2016. The company has stated on several occasions that it intends to take some of its concept vehicles into production in the future. Nikola Corporation is based in Phoenix, Arizona...

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Recent Pages

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Did You Know?

Eclipse is an IDE used in computer programming It contains a base workspace and an extensible plug-in system for customizing the environment. Eclipse is written mostly in Java and its primary use is for developing Java applications. It also can be used for Ada, ABAP, C, C++, C#, Clojure, COBOL, D, Erlang, Fortran, Groovy, Haskell, JavaScript, Julia .. Read More

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

Recent tutorials:

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In 2021 DMelt project released one of the fastest search engines for data science topics with the focus on Python, Java and Groovy... Read More

Recent Blogs

Application of CFD in Built Environment
Computational fluid dynamics (CFD) is the science of predicting fluid flow, heat transfer, mass transfer, chemical reactions and related phenomena by solving the mathematical equations ... Read more

Data visualization: the most effective way to convey information
News, facts, figures: modern man is overloaded with information flow. The idea of this has long turned into a cliché but has not lost its relevance. This is why data visualization is needed... Read more

Wiki of Our Sponsors

DataMelt

DataMelt is a free software for numeric computation, mathematics, statistics, symbolic calculations, data analysis and data visualization. The program runs on Windows/Mac OS/Linux..

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Mathematics and Computer Science

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.

Mathematics

Calculus, algebra, geometry, topology, logic, statistics and related topics
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Data Analysis

Analysis techniques, data mining, algorithms and visualization
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Computer concepts

Theory of calculations with computers, computer terms and programming languages
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Natural and Formal Sciences

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

Astronomy

Universe, celestial objects, cosmology, space science and exploration
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Biology

Studies of life and living organisms
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Chemistry

Composition, structure and properties of matter
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Physics

All about physical sciences and related
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Earth

Sciences about the planet Earth
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Unsolved

Unexplained problems and unusual observations
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Humanities

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.

History

Study of past events, chronological records and their interpretations
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Philosophy

Questions about existence, values, knowledge, reasons and mind
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Social

Topics related to social sciences and humanity
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Religion

System of beliefs and wordviews that relate humanity to spirituality
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Medicine

Different areas of medical sciences, health and related
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Places

Various places, particular regions and centers of population
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Technology, Tools and Finance

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).

Engineering

Design and manufacturing of complex devices and machines
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Software

Computer programs and libraries organized by topics
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Finance

Finance, business, market and financial calculations
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Companies, Organizations and People

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.

Organizations

Organizations contributing to science and technology
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Companies

Companies contributing to science and technologies
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Biographies

Biographies of researches in science and technology
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Books, Monographs, Manuals and Tutorials

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.