current-transformation ratio
51Economic history of Portugal — This article covers the economic history of Portugal.Portugal was once one of the largest and most powerful political and economic powers in the world. Since the 16th century to the end of the Estado Novo regime in 1974, Portugal s dominions were …
52Christianity — /kris chee an i tee/, n., pl. Christianities. 1. the Christian religion, including the Catholic, Protestant, and Eastern Orthodox churches. 2. Christian beliefs or practices; Christian quality or character: Christianity mixed with pagan elements; …
53literature — /lit euhr euh cheuhr, choor , li treuh /, n. 1. writings in which expression and form, in connection with ideas of permanent and universal interest, are characteristic or essential features, as poetry, novels, history, biography, and essays. 2.… …
54Cold fusion — This article is about the Fleischmann–Pons claims of nuclear fusion at room temperature. For the original use of the term cold fusion , see Muon catalyzed fusion. For all other definitions, see Cold fusion (disambiguation). Diagram of an open… …
55Dirac equation — Quantum field theory (Feynman diagram) …
56Russia — /rush euh/, n. 1. Also called Russian Empire. Russian, Rossiya. a former empire in E Europe and N and W Asia: overthrown by the Russian Revolution 1917. Cap.: St. Petersburg (1703 1917). 2. See Union of Soviet Socialist Republics. 3. See Russian… …
57United Kingdom — a kingdom in NW Europe, consisting of Great Britain and Northern Ireland: formerly comprising Great Britain and Ireland 1801 1922. 58,610,182; 94,242 sq. mi. (244,100 sq. km). Cap.: London. Abbr.: U.K. Official name, United Kingdom of Great… …
58Metamaterial cloaking — Electromagnetism Electricity · …
59One-child policy — Government sign in Tang Shan: For a prosperous, powerful nation and a happy family, please practice family planning. The one child policy (simplified Chinese: 计划生育政策; traditional Chinese: 計劃生育政策; pinyin: jìhuà shēngyù zhèngcè; literally policy of …
60Impedance matching — In electronics, impedance matching is the practice of designing the input impedance of an electrical load (or the output impedance of its corresponding signal source) to maximize the power transfer and/or minimize reflections from the load.… …
