Browse Reference Articles
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Energy and the Environment
Solar Energy
Renewable Energy
Geomagnetic Storms
Environmental Science
Graphene
Solar cell
A solar cell (or a "photovoltaic" cell) is a device that converts photons from the sun (solar light) into electricity. In general, a solar cell that includes both solar and nonsolar sources of light ... > more -
Ultraviolet
Ultraviolet (UV) radiation is electromagnetic radiation of a wavelength shorter than that of the visible region, but longer than that of soft X-rays. The Sun emits ultraviolet radiation in the UVA, ... > more -
Timeline of Hurricane Katrina
This Wikipedia article contains a detailed historical timeline of the events of Hurricane Katrina. At approximately 8:14 AM CDT (1314 UTC) on Monday August 29, 2005, the New Orleans office of the ... > more -
Alternative fuel vehicle
Alternative Fuel Vehicle refers to a vehicle that runs on a fuel other than traditional gasoline or diesel; any method of powering an engine that does not involve petroleum. Due to a combination of ... > more -
Earthquake
An earthquake is the result of a sudden release of stored energy in the Earth's crust that creates seismic waves. Earthquakes are accordingly measured with a seismometer, commonly known as a ... > more -
Hurricane Camille
Hurricane Camille was a Category 5 hurricane that struck the United States at peak intensity near the mouth of the Mississippi River on the night of August 17 during the 1969 Atlantic hurricane ... > more -
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 -
Plant breeding
Plant breeding is the purposeful manipulation of plant species in order to create desired genotypes and phenotypes for specific purposes. This manipulation involves either controlled pollination, ... > more -
Activated sludge
Activated sludge is a process in sewage treatment in which air or oxygen is forced into sewage liquor to develop a biological floc which reduces the organic content of the ... > more
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