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81History of virtual learning environments — A virtual learning environment (VLE) is a system that creates an environment designed to facilitate teachers in the management of educational courses for their students, especially a system using computer hardware and software, which involves… …
82Climate of the Arctic — The climate of the Arctic is characterized by long, cold winters and short, cool summers. There is a large amount of variability in climate across the Arctic, but all regions experience extremes of solar radiation in both summer and winter. Some… …
83Fiber-optic communication — An optical fiber junction box. The yellow cables are single mode fibers; the orange and blue cables are multi mode fibers: 50/125 µm OM2 and 50/125 µm OM3 fibers respectively. Fiber optic communication is a method of transmitting information from …
84Personal computer — This article is about personal computers in general. For computers generally referred to as PCs , see IBM PC compatible. For hardware components dealing with personal computers, see Personal computer hardware. Personal computer An illustration of …
85anthropology — anthropological /an threuh peuh loj i keuhl/, anthropologic, adj. anthropologically, adv. /an threuh pol euh jee/, n. 1. the science that deals with the origins, physical and cultural development, biological characteristics, and social customs… …
86weather forecasting — Prediction of the weather through application of the principles of physics and meteorology. Weather forecasting predicts atmospheric phenomena and changes on the Earth s surface caused by atmospheric conditions (snow and ice cover, storm tides,… …
87Comparison of analog and digital recording — This article compares the two ways in which sound is recorded and stored. Actual sound waves consist of continuous variations in air pressure. Representations of these signals can be recorded using either digital or analog techniques. An analog… …
88The Mind's Eye (Star Trek: The Next Generation) — The Mind s Eye Star Trek: The Next Generation episode Geordi undergoes brainwashing treatments …
89Catalan language — Catalan, Valencian català, valencià Pronunciation [kətəˈɫa] (EC) [kataˈla] (WC) [valensiˈa] (V) Spoken in …
90Luxembourg — This article is about the country in western Europe. For other uses, see Luxembourg (disambiguation). Grand Duchy of Luxembourg Groussherzogtum Lëtzebuerg (Luxembourgish) Grand Duché de Luxembourg (French) …
