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Results 141 - 150 of 267 for Construction
  • Article - 9 May 2016
    Derived from the two Greek words hydro and ponos, meaning water and labor respectively, hydroponics is defined as a method of growing plants in water.
  • Article - 18 Sep 2014
    River turbines are based on a simple technology designed to harness energy from flowing water. It is a clean and renewable source of power. Large-scale application of river turbines covering a land...
  • Article - 5 Sep 2014
    With fossil fuel reserves expected to run out within the next century, the need to use renewable sources of energy such as solar power has never been so great.
  • Article - 9 Jun 2014
    Natural coral reefs are complex ecosystems primarily observed in tropical waters. These structures made up of calcium carbonate occupy less than 0.1% of the ocean’s surface, but provide shelter to...
  • Article - 10 Sep 2014
    Greenhouses are glass structures designed for growing plants. Farmers in colder regions use greenhouses to try and extend the growing season of their crops. They work on the principle of convection...
  • Article - 23 May 2013
    Biodiesel is a vegetable oil or animal fat-based diesel fuel consisting of long-chain alkyl esters.
  • Article - 3 Jan 2013
    A solar panel is a set of solar cells that convert light energy into electric energy. A number of solar panels, a battery, interconnection wiring and an inverter constitute a large photovoltaic system...
  • Article - 1 Aug 2012
    The London 2012 Olympics are aiming to become the first sustainable Olympics, and a huge effort has been made to ensure that every aspect of the games lives up to that claim.
  • Article - 19 Jul 2012
    In terms of heat energy the amount of solar radiation absorbed by the oceans on an average day equates to about 250 billion barrels of oil.
  • Article - 27 Jun 2012
    Cellulose was first discovered by the French scientist Anselme Payen in 1838, when he noticed a resistant fibrous solid that remained behind after treating plant tissue with acids and ammonia.

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