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Solar radiation
Solar radiation is radiant energy emitted by the sun, particularly electromagnetic energy. About half of the radiation is in the visible short-wave part of the electromagnetic spectrum. The other ... > more -
Radiant energy
Radiant energy is the energy of electromagnetic waves. The term is most commonly used in the fields of radiometry, solar energy, heating and lighting, but is also used less frequently in other fields ... > more -
Sustainable agriculture
Sustainable agriculture integrates three main goals: environmental stewardship, farm profitability, and prosperous farming communities. Sustainable agriculture refers to the ability of a farm to ... > more -
Wind Energy
Renewable Energy
Energy and the Environment
Environmental Science
Energy and Resources
Energy Technology
Wind power
Wind power is the conversion of wind energy into more useful forms, such as electricity, using wind turbines. At the end of 2006, worldwide capacity of wind-powered generators was 73.9 gigawatts; ... > more -
Combustion
Combustion or burning is a complex sequence of chemical reactions between a fuel and an oxidant accompanied by the production of heat or both heat and light in the form of either a glow or flames. ... > more -
Air conditioning
An air conditioner (AC or air-con) is an appliance or mechanism designed to extract heat from an area using a refrigeration cycle. In construction, a complete system of heating, ventilation and air ... > more -
IPCC Fourth Assessment Report
The Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) is the fourth in a series of reports on climate change. Two of the three reports (Working groups I and II) have ... > more -
Moment magnitude scale
The moment magnitude scale was introduced in 1979 by Tom Hanks and Hiroo Kanamori as a successor to the Richter scale and is used by seismologists to compare the energy released by ... > more -
Batteries
Automotive and Transportation
Electricity
Energy and the Environment
Energy Technology
Vehicles
Battery electric vehicle
A battery electric vehicle (BEV) is an electric vehicle that utilises chemical energy that is stored in rechargeable battery packs. Electric vehicles use electric motors instead of, or in addition ... > more -
Hadley cell
The major driving force of atmospheric circulation in the tropical regions is solar heating. Because of the Earth's 23.5 ° axial tilt, the sun is never more than a few tens of degrees from ... > more
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