Search | Navigation

Portal:Energy

The Energy Portal
Crystal energy.svg

Welcome to Wikipedia's energy portal, your gateway to the subject of energy and its effect on the world around us. This portal is to help you know more about energy


Main page   Explore topics & categories   Tasks & announcements


Page contents: IntroductionEnergy newsSelected articleSelected pictureSelected biographyDid you know?QuotationsRelated portalsWikiprojectsAssociated WikimediaHelp

edit  watch  

Introduction

Susquehanna steam electric station.jpg

Energy is a set of physics measures. Popularly the term is most often used in the context of energy as a technology: energy resources, their consumption, development, depletion, and conservation. Biologically, bodies rely on food for energy in the same sense as industry relies on fuels to continue functioning. Since economic activities such as manufacturing and transportation can be energy intensive, energy efficiency, energy dependence, energy security and price are key concerns. Increased awareness of the effects of global warming has led to international debate and action for the reduction of greenhouse gases emissions, like many previous energy use patterns it is changing not due to depletion or supply constraints but due to problems with waste, extraction or geopolitical scenarios.

In the context of natural science, energy can take several different forms: thermal, chemical, electrical, radiant, nuclear, etc. These are often grouped as being either kinetic energy or potential energy. Many of these forms can be readily transformed into another with the help of a device; from chemical energy to electrical energy using a battery, for example. Most energy available for human use ultimately comes from the sun which generates it with nuclear fusion. The enormous potential for fusion and other basic nuclear reactions is expressed by the famous equation E = mc2.

The concepts of energy and its transformations are useful in explaining natural processes on larger scales: Meteorological phenomena like wind, rain, lightning and tornadoes all result from energy transformations brought about by solar energy on the planet. Life itself is critically dependent on biological energy transformations; organic chemical bonds are constantly broken and made to make the exchange and transformation of energy possible. Read more...


edit  watch  

Selected article

Potlatch gas Crop1.jpg
The 1973 oil crisis began in earnest on October 17, 1973, when the members of Organization of Arab Petroleum Exporting Countries announced, as a result of the ongoing Yom Kippur War, that they would no longer ship petroleum to nations that had supported Israel in its conflict with Syria and Egypt (i.e., to the United States and its allies in Western Europe).

At about the same time, OPEC members agreed to use their leverage over the world price-setting mechanism for oil in order to quadruple world oil prices, after attempts at negotiation failed. Due to the dependence of the industrialized world on OPEC oil, these price increases were dramatically inflationary to the economies of the targeted countries, while at the same time suppressive of economic activity.

This increase in the price of oil had a dramatic effect on oil exporting nations, for the countries of the Middle East who had long been dominated by the industrial powers were seen to have acquired control of a vital commodity. The traditional flow of capital reversed as the oil exporting nations accumulated vast wealth. Meanwhile, the shock produced chaos in the West, and shares on the New York Stock Exchange lost $97 billion in value in six weeks. Read more...





edit  watch  

Selected picture

Sunspot TRACE.jpeg

Photo credit: NASA/TRACE
Plasma being channeled by the magnetic feld loops of a sunspot.





edit  watch  

Did you know?

West Ford Flat Geothermal Cooling Tower.JPG




edit  watch  

Selected biography

{{{caption}}}
John Davison Rockefeller, Sr. (July 8, 1839 – May 23, 1937) was a controversial American industrialist who revolutionized the oil industry and defined the structure of modern philanthropy. He is often regarded as the richest person in history.

Rockefeller founded the Standard Oil Company in 1870 and ran it until he retired in the late 1890s. He continued to retain his stock and his title as president until 1911, when the company was broken up for carrying out illegal monopoly practices. The new companies formed included the predecessors of Conoco, Amoco, Chevron, Esso, Mobil and Sohio. Rockefeller, who had rarely sold shares, owned stock in all of them. As gasoline had grown in importance his wealth had soared and he became the world's richest man and the first billionaire.

Rockefeller's fortune was used to create the modern systematic approach of targeted philanthropy with foundations that had a major impact on medicine, education, and scientific research. His foundations pioneered the development of medical research, and was instrumental in the eradication of hookworm and yellow fever. At his death, at the age of 98, Rockefeller's remaining fortune was estimated at $1.4 billion. As a percentage of the United States economy, no other American fortune has ever come close. Read more...





edit  watch  

Energy news


Wikinews on energy
Renewable energy news





edit  watch  

Quotations





edit  watch  

Related portals

edit  watch  

WikiProjects

edit  watch  

Help

Torchlight help icon.svg

Puzzled by energy?
Can't answer your question?
Don't understand the answer?


For further ideas, to leave a comment, or to learn how you can help improve and update this portal, see the talk page.

edit  watch  

Associated Wikimedia

Energy on Wikibooks  Energy on Wikimedia Commons Energy on Wikinews  Energy on Wikiquote  Energy on Wikisource  Energy on Wikiversity  Energy on Wiktionary 
Manuals and books Images and media News Quotations Texts Learning resources Definitions



[1] Search
[2] All Pages
[3] Random article
powered by Sevenval