The Center for Cultural Design presents this site on geometric concepts as displayed in Mangbetu art. This artistic tradition displays all four geometric transforms: reflection, translation, rotation and scaling....
Drinking Water Standards: This site form the EPA presents links to many articles on Priority Rule Makings and Regulatory Infrastructure on the subject of drinking water standards.
This site is designed to help instructors and students locate and use online databases and Geographic Information Systems (GIS) tools to research environmental risks in their own neighborhoods. Materials include a...
This site discusses the evolution of thought from a geocentric model to a heliocentric model of the cosmos. The author tells the history of this discovery beginning with the Greeks and ends with Kepler's laws of...
Designed as a resource for policy makers, advocates, landowners, developers and others interested in furthering the production of electricity from renewable wind, solar, geothermal and biomass energy resources.
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