Browse Reference Articles
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Vermicompost
Vermicompost (or Worm Compost) the process of using earthworms to breakdown kitchen and garden waste, to create a faster than normal composting. Compared to ordinary soil, the earthworm castings (the ... > more -
Mount Etna
Mount Etna is an active volcano on the east coast of Sicily, close to Messina and Catania. It is the largest active volcano in Europe, currently standing about 3,350 m (10,991 ft) high, though it ... > more -
Typhoid fever
Typhoid fever (a.k.a. Enteric fever) is an illness caused by the bacterium Salmonella typhi. Very common worldwide, it is transmitted by ingestion of food or water contaminated with feces from an ... > more -
Global Positioning System
The Global Positioning System, usually called GPS, is the Earth's only fully-functional satellite navigation system. A constellation of more than two dozen GPS satellites broadcasts precise timing ... > more -
Hurricane preparedness for New Orleans
Hurricane and flood preparedness in New Orleans has been an issue since the city's early settlement because of the city's location. Much of New Orleans was built on a delta marsh and sits below sea ... > more -
Mantle plume
A mantle plume is an upwelling of abnormally hot rock within the Earth's mantle. As the heads of mantle plumes can partly melt when they reach shallow depths, they are thought to be the cause of ... > more -
Deforestation
Deforestation is the conversion of forested areas to non-forest land use such as arable land, urban use, logged area or wasteland. Historically, this meant conversion to grassland or to its ... > more -
Hayward Fault Zone
The Hayward Fault Zone is located in northern California in the San Francisco Bay Area. It is parallel to and east of its more famous (and much longer) sister fault, the San Andreas ... > more
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