Your free online encyclopedia: Table of contents

This free online encyclopedia is broken down into various categories like Biology, Computer & Internet, and Physics. Below you see all currently available categories. Terms and information within this encyclopedia are also alphabetically organised. If you want to access terms like you are using an offline encyclopedia please use the menu below.

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Anthropology  
Anthropology is the scientific study of humankind from its beginnings to the present. It is usually broken up into specific but related disciplines: social or cultural anthropology, linguistic anthropology, biological anthropology, and archaeology.



Arts  
Arts includes any artistic disciplines which include but are not limited to music, dance, drama, theatre performances, creative writing, literature, architecture, folk arts, visual arts, and media, and the execution and exhibition of other art forms.



Astronomy  
Astronomy is the science of the celestial bodies and the physical universe (usually beyond the Earth's atmosphere): Sun, Moon, our solar system and its planets like Mars, Jupiter, or Neptune, the stars and galaxies, and every other object in the universe.



Biology  
Biology ist the scientific study of living organisms. This science includes all the sciences dealing with life in all its forms and relationships especially with reference to evolution, structure, function and reproduction in plant and animal species.



Business & Economy  
A market economy is characterized by freely determined prices and the free exchange of goods and services in markets through the interplay of supply and demand - the law of supply and demand - which is largely unhampered by government rationing, price-fixing or other coercive interference.



Chemistry  
Chemistry is the systematic study of matter respectively organic and inorganic substances - composition, structure, and properties - and its transformations and reactions.



Computer & Internet  
A computer is an electronic device that responds to a specific set of instructions and can execute programs. Computers can be used to create a global network connecting millions of computers to a network called Internet. Part of the Internet is the WWW which is an information retrieval service developed by Tim Berners-Lee at CERN in 1990.



Entertainment  
Entertainment is any process which increases the happiness of some persons and that is offered for the enjoyment of the audience. Types of entertainment includes but are not limited to movies, theatre, books, dance or electronic entertainment like video games, multimedia or the Internet.



Environment  
Environment used as a general reference includes the generic natural environment like weather and climate, oceans, terrain, vegetation, etc. The term in its narrow sense implies an environment for a collection of organisms, whether plant or animal.



Geology  
Geology is the study of the planet Earth, the materials of which it is made (i.e. rocks, soil, sand), processes that affect these materials (volcanic eruptions, glaciers, continental drifts), and the history of the planet (geological eras & periods) and its life forms since its origin like the study of fossils.



Health & Medical Science  
Medical Science is the science of dealing with the maintenance of health and the prevention and treatment of disease (like the Alzheimer's Disease).



History  
The term history has several meanings and is mainly the aggregation of past events and their narrative description. Describes also the the discipline that records and interprets past events involving human beings and the study of the continuum of events occurring in succession leading from the past (i.e. stone age, renaissance or the industrial revolution) to the present (i.e. space age) and even into the future .



Mathematics  
Mathematics is the science dealing with the logic of quantity and shape and arrangement. Examples of disciplines are as follows: algebra, analysis, applied mathematics, foundations and logic, geometry, numerical analysis, statistics, and topology.



Meteorology  
Meteorology ist the science of the study of weather: the study of the changes in temperature, air pressure, moisture, and wind direction in the lowest part of the atmosphere in which most of the observed weather phenomena occur. Meteorologists investigate these day-by-day variations in the weather.



Miscellaneous  
The miscellaneous category includes all terms and definitions which does not fit in the current category structure: i.e. Capitulation, Echolocation, Energy Source, Fuel, Hover Craft, or Hypnotism.



Physics  
The study of physics is usually broken down into the following categories: mechanics, thermodynamics, sound, light, electricity and magnetism, nuclear physics, elementary particles, relativity theory, and quantum mechanics. The last five categories are sometimes referred to as modern physics.



Politics  
Politics is the practice of making, influencing, explaining, justifying, criticising, scrutinising, reversing decisions in and for a community. Formally, politics refers to the science and art of government - the way in which public affairs, are ordered or organised.



Recreation & Sports  
Recreation is any human physical or psychological revitalization achieved through the voluntary pursuit of leisure activities like i.e. sports. Sports is an active diversion requiring physical exertion and competition.



Regional  
This category includes all terms and definitions which are related to countries, states and regions of the world: i.e. USA, China, Germany, United Kingdom, Altantic and Pacific Ocean, or our world in gerneral.



Science (General)  
Any domain of knowledge accumulated by systematic study and organized by general principles. This category contains all science related terms and definitions which does not fit in the other science categories like Biology, Chemistry, Mathematics, or Medical Science



Social Science  
Branches of science that deal with humans, the relationships of individual within a society and society in general.



Society & Culture  
Society describes an extended social group having a distinctive cultural and economic organization. Therefore, it is a formal association of people with similar interests. Culture is a complex value system constructed by a community.