highest efficiency
81Sustainable energy — Renewable energy …
82Gamma spectroscopy — The gamma ray spectrum of natural uranium, showing about a dozen discrete lines superimposed on a smooth continuum, allows the identification the nuclides 226Ra, 214Pb, and 214Bi of the uranium decay chain. Gamma ray spectroscopy is the… …
83Climate change in Washington — Main article: Climate change in the United States Digitally colored elevation map of Washington. Climate change in the American state of Washington is a subject of study and projection today. Contents …
84Health care in the United States — ] Current estimates put U.S. health care spending at approximately 15.2% of GDP, second only to the tiny Marshall Islands among all United Nations member nations. The health share of GDP is expected to continue its historical upward trend,… …
85Health care system — A health care system is the organization of people, institutions, and resources to deliver health care services to meet the health needs of target populations. There is a wide variety of health care systems around the world, with as many… …
86Loudspeaker — For other uses, see Loudspeaker (disambiguation). An inexpensive, low fidelity 3½ inch speaker, typically found in small radios …
87Centrifugal compressor — Centrifugal compressors, sometimes termed radial compressors, are a sub class of dynamic axisymmetric work absorbing turbomachinery.[1] Centrifugal impeller with a highly polished surface likely to improve performance …
88Health care reform in the United States — ] Current estimates put U.S. health care spending at approximately 16% of GDP. [http://www.cms.hhs.gov/NationalHealthExpendData/25 NHE Fact Sheet.asp#TopOfPage National Health Expenditure Data: NHE Fact Sheet, ] Centers for Medicare and Medicaid… …
89Economy of the People's Republic of China — Economies of Special Administrative Regions of Hong Kong and Macau are administered separately from the rest of People s Republic of China. Therefore, the information below pertains only to mainland China unless specified otherwise. For the… …
90jet engine — an engine, as an aircraft engine, that produces forward motion by the rearward exhaust of a jet of fluid or heated air and gases. Also called jet, jet motor. [1940 45] * * * Any of a class of internal combustion engines that propel aircraft by… …
