reference-value scale
11Palermo Technical Impact Hazard Scale — The Palermo Technical Impact Hazard Scale is a logarithmic scale used by astronomers to rate the potential hazard of impact of a near earth object (NEO). It combines two types of data mdash;probability of impact, and estimated kinetic yield… …
12Biological value — (BV) is a measure of the proportion of absorbed protein from a food which becomes incorporated into the proteins of the organism s body. It summarises how readily the broken down protein can be used in protein synthesis in the cells of the… …
13Geologic time scale — This clock representation shows some of the major units of geological time and definitive events of Earth history. The Hadean eon represents the time before fossil record of life on Earth; its upper boundary is now regarded as 4.0 Ga.[1] Other… …
14Frame of reference — A frame of reference in physics, may refer to a coordinate system or set of axes within which to measure the position, orientation, and other properties of objects in it, or it may refer to an observational reference frame tied to the state of… …
15Weighing scale — Emperor Jahangir (reign 1605 1627) weighing his son Shah Jahan on a weighing scale by artist Manohar (AD 1615, Mughal dynasty, India). A weighing scale (usually just scales in UK and Australian English, weighing machine in south Asian English or… …
16Wikipedia:Reference desk/Mathematics — The Wikipedia Reference Desk covering the topic of mathematics. Mathematics #eee #f5f5f5 #eee #aaa #aaa #aaa #00f #36b #000 #00f mathematics Wikipedia:Refere …
17British national grid reference system — The British national grid reference system is a system of geographic grid references commonly used in Great Britain, different from using latitude and longitude.The Ordnance Survey (OS) devised the national grid reference system, and it is… …
18Law of value — The law of value is a concept in Karl Marx s critique of political economy. Most generally, it refers to a regulative principle of the economic exchange of the products of human work: the relative exchange values of those products in trade,… …
19Vernier scale — A vernier scale is an additional scale which allows a distance or angle measurement to be read more precisely than directly reading a uniformly divided straight or circular measurement scale. It is a sliding secondary scale that is used to… …
20Entity–attribute–value model — (EAV) is a data model to describe entities where the number of attributes (properties, parameters) that can be used to describe them is potentially vast, but the number that will actually apply to a given entity is relatively modest. In… …
