Limerence is a state of mind which results from romantic or non-romantic feelings for another person and typically includes obsessive thoughts and fantasies and a desire to form or maintain a relationship with the object of love and have one's feelings reciprocated. Limerence can also be defined as an involuntary state of intense desire. == Definition == Psychologist Dorothy Tennov coined the term "limerence" for her 1979 book, Love and Limerence: The Experience of Being in Love, to describe a concept that had grown out of her work in the mid-1960s, when she interviewed over 500 people on the topic...

A chum () is a temporary dwelling used by the nomadic Uralic (Nenets, Nganasans, Enets, Khanty, Mansi, Komi) reindeer herders of northwestern Siberia of Russia. The Evenks, Tungusic peoples, tribes, in Russia, Mongolia and China also use chums. They are also used by the southernmost reindeer herders, of the Todzha region of the Republic of Tyva and their cross-border relatives in northern Mongolia. It has a design similar to a Native American tipi but some versions are less vertical. It is very closely related to the Sami lavvu in construction, but is somewhat larger in size. Some chums can be...

Urban consolidation describes the policy of constraining further development and population growth to within the boundaries of preexisting urban areas rather than expanding outward into suburban areas. Urban consolidation seeks to increase the population density of a given urban area by expanding upward, redeveloping preexisting buildings and lots, and constructing new facilities in available spaces. It is theorized that discouraging urban sprawl and encouraging further development of housing units in preexisting urban areas will lead to a net gain in social and economic prosperity (e.g. mo...

A pentatonic scale is a musical scale with five notes per octave, in contrast to the heptatonic scale, which has seven notes per octave (such as the major scale and minor scale). Pentatonic scales were developed independently by many ancient civilizations and are still used in various musical styles to this day. There are two types of pentatonic scales: those with semitones (hemitonic) and those without (anhemitonic). == Types == === Hemitonic and anhemitonic === Musicology commonly classifies pentatonic scales as either hemitonic or anhemitonic. Hemitonic scales contain one or more se...

Dazzle camouflage, also known as razzle dazzle (in the U.S.) or dazzle painting, was a family of ship camouflage used extensively in World War I, and to a lesser extent in World War II and afterwards. Credited to the British marine artist Norman Wilkinson, though with a rejected prior claim by the zoologist John Graham Kerr, it consisted of complex patterns of geometric shapes in contrasting colours, interrupting and intersecting each other. Unlike other forms of camouflage, the intention of dazzle is not to conceal but to make it difficult to estimate a target's range, speed, and heading. Norman...