• Analogous colors
    Analogous colors are groups of three colors that are next to each other on the color wheel, sharing a common color, […]
  • North light in architecture
    North light is natural light coming from the north (in the Northern Hemisphere). It consists of light which comes from […]
  • Sustainable forest management
    Sustainable forest management is the management of forests according to the principles of sustainable development. […]
  • Ethanol fuel
    Ethanol fuel is ethyl alcohol, the same type of alcohol found in alcoholic beverages, used as fuel. It is most often […]
  • Droste effect
    The Droste effect, known in art as an example of mise en abyme, is the effect of a picture recursively appearing within […]
  • Spatial network
    A spatial network (sometimes also geometric graph) is a graph in which the vertices or edges are spatial elements […]
  • Medical tourism
    Medical tourism refers to people traveling to a country other than their own to obtain medical treatment. In the past […]
  • Dental tourism
    Dental tourism (also called dental vacations or commonly known as dental holidays in Europe) is a subset of the sector […]
  • Environmental justice
    Environmental justice emerged as a concept in the United States in the early 1980s. The term has two distinct uses with […]
  • Reverence
    Reverence is “a feeling or attitude of deep respect tinged with awe; veneration”. The word […]