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  2. Portal:Energy/Selected picture - Wikipedia

    en.wikipedia.org/wiki/Portal:Energy/Selected_picture

    Photosynthesis is a complex energy transformation process in which sunlight, carbon dioxide and water are converted to chemical energy by living organisms. More selected pictures Picture 17

  3. List of energy resources - Wikipedia

    en.wikipedia.org/wiki/List_of_energy_resources

    Nuclear energyenergy in the nucleus or core of atoms [1] Nuclear fusion; Nuclear reactor; Nuclear reprocessing; Oil drilling; Oil platform; Oil refinery; Oil shale; Oil well; Osmotic power – or salinity gradient power – is the energy available from the difference in the salt concentration between seawater and river water. OTEC ...

  4. Energy - Wikipedia

    en.wikipedia.org/wiki/Energy

    Energy transformations in the universe over time are characterized by various kinds of potential energy, that has been available since the Big Bang, being "released" (transformed to more active types of energy such as kinetic or radiant energy) when a triggering mechanism is available.

  5. Portal:Renewable energy/Selected picture - Wikipedia

    en.wikipedia.org/wiki/Portal:Renewable_energy/...

    Renewable energy portal selected pictures. Picture 1. The Middelgrunden offshore wind farm in Øresund, delivers about 4% of the power for Copenhagen. Picture 2.

  6. List of states of matter - Wikipedia

    en.wikipedia.org/wiki/List_of_states_of_matter

    Different structural phases of polymorphic materials are considered to be different states of matter in the Landau theory. For an example, see Ice § Phases. Liquid: A mostly non-compressible fluid. Able to conform to the shape of its container but retains a (nearly) constant volume independent of pressure. Gas: A compressible fluid. Not only ...

  7. Category:Forms of energy - Wikipedia

    en.wikipedia.org/wiki/Category:Forms_of_energy

    Pages in category "Forms of energy" The following 14 pages are in this category, out of 14 total. This list may not reflect recent changes. A. Atomic energy; B.

  8. List of light sources - Wikipedia

    en.wikipedia.org/wiki/List_of_light_sources

    This is a list of sources of light, the visible part of the electromagnetic spectrum.Light sources produce photons from another energy source, such as heat, chemical reactions, or conversion of mass or a different frequency of electromagnetic energy, and include light bulbs and stars like the Sun. Reflectors (such as the moon, cat's eyes, and mirrors) do not actually produce the light that ...

  9. Renewable energy - Wikipedia

    en.wikipedia.org/wiki/Renewable_energy

    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, although this is controversial. Renewable energy installations can be large or small and are suited for both urban and rural ...