Definitions - v


Climate Science is the study of the behaviour of the climate using scientific techniques to discover provable processes and actions within the climate and hence be able to:

  • predict with a degree of accuracy future changes in the climate,
  • advise on how to interact with the climate
Climate Science, although primarily the study of the environment also depends a lot on mathematic and statistical processes to understand the climate - as we can only observe the climate using very sparse measurements.

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The process where worms feed slowly on decomposing materials (e.g. vegetable scraps) in a controlled environment to produce nutrient-rich soil.

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Vertical Axis Wind Turbine

A wind generator design where the rotating shaft is perpendicular to the ground, and the cups or blades rotate parallel to the ground.

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Vertical-axis Wind Turbine

A wind turbine with the axis or main shaft mounted vertically, or perpendicular to the earth's surface. This type of turbine does not need to be turned to face the wind - the wind always blows across it. Types include Savonius and Darrius.

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The evolution of a new species from a group separated from the original species by a geographic barrier.

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Rain which fall in the sky but evaporates before it reaches the ground.

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Virgin Materials

Resources extracted from nature in their raw form, such as timber or metal ore.

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Virgin Paper

Virgin paper is paper that contains no recycled content and is made directly from the pulp of trees or, alternatively, cotton.

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Volatile Organic Compounds

Volatile Organic Compounds (VOCs) , are carcinogens found in paint, finishes, synthetic foams, fabrics and stains. Most labels should indicate if something has low or zero VOCs.

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Voltage Drop

The voltage lost along a length of wire or a conductor due to the internal resistance of that conductor. The voltage drop is calculated using Ohms Law. 

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