past+calculation
31Emergency contraception — Background Birth control type Hormonal (progestin or others) or intra uterine First use 1970s Failure rates (per use) Perfect use ECP: see article text IUD: under 1% …
32Greenhouse gas — Simple diagram of greenhouse effect. A greenhouse gas (sometimes abbreviated GHG) is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect.[1] …
33Hawking radiation — is a thermal radiation with a black body spectrum predicted to be emitted by black holes due to quantum effects. It is named after the physicist Stephen Hawking, who provided a theoretical argument for its existence in 1974, and sometimes also… …
34probability theory — Math., Statistics. the theory of analyzing and making statements concerning the probability of the occurrence of uncertain events. Cf. probability (def. 4). [1830 40] * * * Branch of mathematics that deals with analysis of random events.… …
35economic systems — Introduction the way in which humankind has arranged for its material provisioning. One would think that there would be a great variety of such systems, corresponding to the many cultural arrangements that have characterized human society.… …
36Swindon Town F.C. — Football club infobox clubname = Swindon Town fullname = Swindon Town Football Club nickname = The Robins founded = 1879 ground = The County Ground Swindon | SN1 2ED capacity = 15,728 chairman = Andrew Fitton manager = flagicon|Scotland Maurice… …
37Interval arithmetic — Interval arithmetic, also called interval mathematics , interval analysis , and interval computation , is a method in mathematics. It has been developed by mathematicians since the 1950s and 1960s as an approach to putting bounds on rounding… …
38Child support in the United States — Main article: Child support The law governing child support in the United States varies state by state and Native American tribe by tribe; each individual state and federally recognized tribe is responsible for developing its own guidelines for… …
39Austrian School — Part of a series on Libertarianism Austrian School …
40Consumer price index — CPI redirects here. For other uses, see CPI (disambiguation). A consumer price index (CPI) measures changes in the price level of consumer goods and services purchased by households. The CPI, in the United States is defined by the Bureau of Labor …
