damp ratio
41Copper indium gallium selenide solar cells — Copper indium gallium selenide (CuIn1 xGaxSe2 or CIGS) is a direct bandgap semiconductor useful for the manufacture of solar cells. Because the material strongly absorbs sunlight, a much thinner film is required than of other semiconductor… …
42Space tether — Artist s conception of satellite with a tether Space tethers are cables, usually long and very strong, which can be used for propulsion, stabilization, or maintaining the formation of space systems by determining the trajectory of spacecraft and… …
43Gunpowder — For other meanings, see gunpowder (disambiguation). Black powder for muzzleloading rifles and pistols in FFFG granulation size. Coin (diameter 24 mm) for comparison. Gunpowder, also known since in the late 19th century as black powder, was the… …
44HVAC — may also stand for High voltage alternating current. See also: Glossary of HVAC HVAC systems use ventilation air ducts installed throughout a building that supply conditioned air to a room through rectangular or round outlet vents, called… …
45Decomposition — For other uses, see Decomposition (disambiguation). A mummified rat. Stages of death Pallor mortis Algor mortis …
46Swept wing — A swept wing is a wing planform common on high speed aircraft, with the wing swept back instead of being set at right angles to the fuselage. This is a useful drag reducing measure for aircraft flying just below the speed of sound. Forward sweep… …
47Distributor — This article is about the engine component. For other uses, see Distributor (disambiguation). Typical distributor with distributor cap Also visible are mounting/drive shaft (bottom), vacuum advance unit (right) and capacitor (centre) A… …
48Norton Priory — Foundations of the monastic buildings and the back of the museum Monastery information …
49Dream Pool Essays — Shen Kuo (沈括) (1031 1095 AD) The Dream Pool Essays (Pinyin: Méng Xī Bǐ Tán; Wade Giles: Meng Hsi Pi t an Chinese: 夢溪筆談／梦溪笔谈) was an extensive book written by the polymath Chinese scientist and statesman Shen Kuo (1031 1095) by 1088 AD, during the …
50Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …
