Search results
Results From The WOW.Com Content Network
The word energy derives from the Ancient Greek: ἐνέργεια, romanized: energeia, lit. 'activity, operation', [3] which possibly appears for the first time in the work of Aristotle in the 4th century BC. In contrast to the modern definition, energeia was a qualitative philosophical concept, broad enough to include ideas such as happiness ...
Wikipedia is not a reliable source for citations elsewhere on Wikipedia, or as a source for copying or translating content. As a user-generated source, it can be edited by anyone at any time, and any information it contains at a particular time could be vandalism, a work in progress, or simply incorrect. Biographies of living persons, subjects ...
Criteria for evaluating reliability. The reliability of Wikipedia articles can be measured by the following criteria: Vandalism of a Wikipedia article. The section on the left is the normal, undamaged version; and on the right is the vandalized, damaged version. Accuracy of information provided within articles.
The term is most commonly associated with text materials, either in traditional printed format or online; however, audio, video, and multimedia materials that have been recorded then broadcast, distributed, or archived by a reputable party may also meet the necessary criteria to be considered reliable sources.
The Institute for Energy Research ( IER) is a Washington, D.C. -based non-profit organization that "conducts intensive research and analysis on the functions, operations, and government regulation of global energy markets." [1] IER maintains that the free market provides the most "efficient and effective solutions" to "global energy and ...
The levelized cost of electricity (LCOE) is a metric that attempts to compare the costs of different methods of electricity generation consistently. Though LCOE is often presented as the minimum constant price at which electricity must be sold to break even over the lifetime of the project, such a cost analysis requires assumptions about the value of various non-financial costs (environmental ...
The product of the mass of a body into the square of its velocity may properly be termed its energy. [4] Gustave-Gaspard Coriolis described "kinetic energy" in 1829 in its modern sense, and in 1853, William Rankine coined the term " potential energy ." It was argued for some years whether energy was a substance (the caloric) or merely a ...
Renewable energy (or green energy) is energy from renewable natural resources that are replenished on a human timescale. The most widely used renewable energy types are solar energy, wind power and hydropower. Bioenergy and geothermal power are also significant in some countries. Some also consider nuclear power a renewable power source ...