When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Non-renewable resource - Wikipedia

    en.wikipedia.org/wiki/Non-renewable_resource

    A coal mine in Wyoming, United States. Coal, produced over millions of years, is a finite and non-renewable resource on a human time scale.. A non-renewable resource (also called a finite resource) is a natural resource that cannot be readily replaced by natural means at a pace quick enough to keep up with consumption. [1]

  3. Science fair - Wikipedia

    en.wikipedia.org/wiki/Science_fair

    A science fair or engineering fair is an event hosted by a school that offers students the opportunity to experience the practices of science and engineering for themselves. In the United States, the Next Generation Science Standards makes experiencing the practices of science and engineering one of the three pillars of science education.

  4. Sustainable energy - Wikipedia

    en.wikipedia.org/wiki/Sustainable_energy

    Renewable energy projects sometimes raise significant sustainability concerns, such as risks to biodiversity when areas of high ecological value are converted to bioenergy production or wind or solar farms. [50] [51] Hydropower is the largest source of renewable electricity while solar and wind energy are growing rapidly.

  5. World energy resources - Wikipedia

    en.wikipedia.org/wiki/World_energy_resources

    Renewable resources are available each year, unlike non-renewable resources, which are eventually depleted. A simple comparison is a coal mine and a forest. While the forest could be depleted, if it is managed it represents a continuous supply of energy, vs. the coal mine, which once has been exhausted is gone.

  6. Primary energy - Wikipedia

    en.wikipedia.org/wiki/Primary_energy

    Primary energy can be non-renewable or renewable. Total primary energy supply (TPES) is the sum of production and imports, plus or minus stock changes, minus exports and international bunker storage. [3] The International Recommendations for Energy Statistics (IRES) prefers total energy supply (TES) to refer to this indicator. [4]

  7. The Stargate Project: An Investor's Take - AOL

    www.aol.com/stargate-project-investors-014500282...

    There aren't to be fair, many others that play in this business. There's Boeing, there's Airbus. ... can you give us an overview of the science of solar energy, ... Renewable energy broadly, is a ...

  8. Renewable energy - Wikipedia

    en.wikipedia.org/wiki/Renewable_energy

    The most common fuel used in conventional nuclear fission power stations, uranium-235 is "non-renewable" according to the Energy Information Administration, the organization however is silent on the recycled MOX fuel. [224] The National Renewable Energy Laboratory does not mention nuclear power in its "energy basics" definition. [225]

  9. Energy development - Wikipedia

    en.wikipedia.org/wiki/Energy_development

    Energy development is the field of activities focused on obtaining sources of energy from natural resources. [citation needed] These activities include the production of renewable, nuclear, and fossil fuel derived sources of energy, and for the recovery and reuse of energy that would otherwise be wasted.