Fandom

Gravity Wiki

Portal:Energy

771pages on
this wiki
Add New Page
Talk0 Share

Wikipedia portals: Culture · Geography · Health · History · Mathematics · Natural sciences · Philosophy · Religion · Society · Technology

The Energy Portal
80px

Welcome to Wikipedia's energy portal, your gateway to the subject of energy and its effect on the world around us.

Main page   Explore topics & categories   Tasks & announcements


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

edit  watch  

Introduction

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 manmade infrastructures 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 or extraction.

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. However, the types of fusion contemplated on Earth are not capable of releasing anywhere near the theoretical maximum available at 100% conversion of matter to energy. Nor would it happen quickly. Nor would there be any guarantee that vast energy sources would not be used for war or ecosystem disruption. So energy conserving strategies will remain the primary and central way in which people resolve energy supply or distribution constraints: Physically, the watt not used is always by definition the safest to rely on, the easiest to supply and the cheapest to consume, and it always will be. The laws of thermodynamics forbid any more effective strategy than conservation from working better. All nature's diverse life forms have bodies that reflect energy conservation as one, if not the, primary constraint: In energy terms, all bodies are at maximum entropy at their surface where they shed the excess heat they generate as a function of being alive.

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...


[{{fullurl:Portal:Energy/Selected article/Expression error: Unrecognised punctuation character "[".|action=edit}} edit]  [{{fullurl:Portal:Energy/Selected article/Expression error: Unrecognised punctuation character "[".|action=watch}} watch]  

Selected article

{{Portal:Energy/Selected article/Expression error: Unrecognised punctuation character "[".}}

[{{fullurl:Portal:Energy/Selected picture/Expression error: Unrecognised punctuation character "[".|action=edit}} edit]  [{{fullurl:Portal:Energy/Selected picture/Expression error: Unrecognised punctuation character "[".|action=watch}} watch]  

Selected picture

{{Portal:Energy/Selected picture/Expression error: Unrecognised punctuation character "[".}}

[{{fullurl:Portal:Energy/Did you know/Expression error: Unrecognised punctuation character "[".|action=edit}} edit]  [{{fullurl:Portal:Energy/Did you know/Expression error: Unrecognised punctuation character "[".|action=watch}} watch]  

Did you know?

{{Portal:Energy/Did you know/Expression error: Unrecognised punctuation character "[".}}

[{{fullurl:Portal:Energy/Selected biography/Expression error: Unrecognised punctuation character "[".|action=edit}} edit]  [{{fullurl:Portal:Energy/Selected biography/Expression error: Unrecognised punctuation character "[".|action=watch}} watch]  

Selected biography

{{Portal:Energy/Selected biography/Expression error: Unrecognised punctuation character "[".}}

edit  watch  

Portal:Energy news



Wikinews on energy


[{{fullurl:Portal:Energy/Quotes/Expression error: Unrecognised punctuation character "[".|action=edit}} edit]  [{{fullurl:Portal:Energy/Quotes/Expression error: Unrecognised punctuation character "[".|action=watch}} watch]  

Quotations

{{Portal:Energy/Quotes/Expression error: Unrecognised punctuation character "[".}}

edit  watch  

Related portals

Error: image is invalid or non-existent

Error: image is invalid or non-existent

Error: image is invalid or non-existent

Technology Nuclear technology Engineering
Earth flag PD
Terra

Error: image is invalid or non-existent

Ecology Earth sciences Physics

Error: image is invalid or non-existent

Error: image is invalid or non-existent

Error: image is invalid or non-existent

Transport Politics Business & Economics
Sustainable development

Error: image is invalid or non-existent

Error: image is invalid or non-existent

Sustainable development Renewable energy Chemistry
edit  watch  

WikiProjects

edit  watch  

Help

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

ar:بوابة:طاقةit:Portale:Energia

ml:കവാടം:ഊര്‍ജ്ജംfi:Teemasivu:Energia

Ad blocker interference detected!


Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.