unity quantum efficiency
21mathematics — /math euh mat iks/, n. 1. (used with a sing. v.) the systematic treatment of magnitude, relationships between figures and forms, and relations between quantities expressed symbolically. 2. (used with a sing. or pl. v.) mathematical procedures,… …
22AT&T Mobility — AT T Wireless redirects here. For the defunct wireless provider that was merged into Cingular in 2004, see AT T Wireless Services. AT T Mobility LLC Type Private (subsidiary of AT T Inc.) Industry …
23International Space Station — ISS redirects here. For other uses, see ISS (disambiguation). International Space Station …
24List of philosophy topics (I-Q) — II and thou I Ching I Ching I proposition I Thou I Thou relationshipIaIamblichus (philosopher)IbYahya Ibn Adi Yahya Ibn Adi Ibn al Arabi Muhyi al Din Ibn al Arabi Abu Bakr Ibn Bajja Abu Bakr Ibn Bājja Abu Bakr Muhammad Ibn Yahya Ibn as Say igh… …
25New Age — This article is about the New Age movement and its spirituality. For the astrological age in western astrology, see Age of Aquarius. For other uses with the term New Age, see New Age (disambiguation). New Age spirituality often makes references… …
26Metalloid —   13 14 15 16 17   2  B Boron …
27science, history of — Introduction the history of science from its beginnings in prehistoric times to the 20th century. On the simplest level, science is knowledge of the world of nature. There are many regularities in nature that mankind has had to… …
28Mathematics of radio engineering — A complex valued function. The mathematics of radio engineering is a pleasant and very useful subject. This article is an attempt to provide a reasonably comprehensive summary of this almost limitless topic. While the ideas have historically… …
29Dialectical materialism — Part of a series on Marxism …
30Meme — For other uses, see Meme (disambiguation). A meme (  /ˈmiː …
