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101Carbon nanotube — Not to be confused with Carbon fiber. Part of a series of articles on Nanomaterials Fullerenes …
102Esperanto — This article is about the language. For other uses, see Esperanto (disambiguation). Esperanto Created by L. L. Zamenhof Date created …
103Map projection — A medieval depiction of the Ecumene (1482, Johannes Schnitzer, engraver), constructed after the coordinates in Ptolemy s Geography and using his second map projection A map projection is any method of representing the surface of a sphere or other …
104Curvilinear coordinates — Curvilinear, affine, and Cartesian coordinates in two dimensional space Curvilinear coordinates are a coordinate system for Euclidean space in which the coordinate lines may be curved. These coordinates may be derived from a set of Cartesian… …
105Metal ions in aqueous solution — A metal ion in aqueous solution is a cation, dissolved in water, of chemical formula [M(H2O)n]z+. The solvation number, n, determined by a variety of experimental methods is 4 for Li+ and Be2+ and 6 for elements in rows 3 and 4 of the periodic… …
106Wikipedia:New pages patrol — For the NewPP counter and its template limits, see Wikipedia:Template limits. Shortcuts: WP:NPP WP:Newpp Wikimedia Foundation is inviting former and current new page patrollers to take part in a survey. If you have patrolled pages and would like… …
107Vacuum cleaner — Cylinder vacuum cleaner for home use. French train vacuum cleaner …
108Earthquake prediction — An earthquake prediction is a prediction that an earthquake in a specific magnitude range will occur in a specific region and time window. Predictions are considered as such to the extent that they are reliable for practical, as well as… …
109eastern Africa — ▪ region, Africa Introduction part of sub Saharan Africa comprising two traditionally recognized regions: East Africa, made up of Kenya, Tanzania, and Uganda; and the Horn of Africa, made up of Somalia, Djibouti, Eritrea, and Ethiopia.… …
110economic systems — Introduction the way in which humankind has arranged for its material provisioning. One would think that there would be a great variety of such systems, corresponding to the many cultural arrangements that have characterized human society.… …
