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101Southern Africa — Introduction southernmost region of the African continent, comprising the countries of Angola, Botswana, Lesotho, Malawi, Mozambique, Namibia, South Africa, Swaziland, Zambia, and Zimbabwe. The island nation of Madagascar is excluded… …
102Brain — This article is about the brains of all types of animals, including humans. For information specific to the human brain, see Human brain. For other uses, see Brain (disambiguation). A chimpanzee brain The brain is …
103Turbofan — [ CFM56 3 turbofan, lower half, side view.] A turbofan is a type of jet engine, similar to a turbojet. It essentially consists of a ducted fan with a smaller diameter turbojet engine mounted behind it that powers the fan. Part of the airstream… …
104Nuclear weapon design — The first nuclear weapons, though large, cumbersome and inefficient, provided the basic design building blocks of all future weapons. Here the Gadget device is prepared for the first nuclear test: Trinity. Nuclear weapon designs are physical,… …
105The Holocaust — Holocaust and Shoah redirect here. For other uses, see Holocaust (disambiguation) and Shoah (disambiguation). Selection on …
106climate — /kluy mit/, n. 1. the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years. 2. a region or… …
107POLAND — POLAND, republic in E. Central Europe; the kingdom of Poland and the grand duchy of Lithuania united formally (Poland Lithuania) in 1569. This article is arranged according to the following outline: the early settlements jewish legal status… …
108Diesel engine — Diesel engines in a museum Diesel generator on an oil tanker …
109Economy of Russia — Russia is a unique emerging market, in the sense that being the nucleus of a former superpower shows more anomalies. On one hand, its exports are primarily resource based, and on the other, it has a pool of technical talent in aerospace, nuclear… …
110Dimensionless quantity — In dimensional analysis, a dimensionless quantity or quantity of dimension one is a quantity without an associated physical dimension. It is thus a pure number, and as such always has a dimension of 1.[1] Dimensionless quantities are widely used… …
