inaccurate measurement
61Observational error — is the difference between a measured value of quantity and its true value.[1] In statistics, an error is not a mistake . Variability is an inherent part of things being measured and of the measurement process. Contents 1 Science and experiments 2 …
62History of perpetual motion machines — The history of perpetual motion machines dates back to the Middle Ages. For millennia, it was not clear whether perpetual motion devices were possible or not, but the development of modern thermodynamics has indicated that they are impossible.… …
63Linear least squares — is an important computational problem, that arises primarily in applications when it is desired to fit a linear mathematical model to measurements obtained from experiments. The goals of linear least squares are to extract predictions from the… …
64Dilution of precision (GPS) — This article pertains to the Global Positioning System. For the connotation pertaining to computer graphics, see dilution of precision (computer graphics). Dilution of precision (DOP), or geometric dilution of precision (GDOP), is a term used in… …
65Stein's example — Stein s example, sometimes referred to as Stein s phenomenon or Stein s paradox, is a surprising effect observed in decision theory and estimation theory. Simply stated, the example demonstrates that when three or more parameters are estimated… …
66Pupillary distance — (PD) is the distance (usually measured in millimeters) between the centers of the pupils in each eye. This measurement is used when making prescription eyeglasses. Positioning lenses correctly in relation to the pupil centers is especially… …
67Bollard pull — is a value that allows the comparison of the pulling power of watercraft, particularly tugboats.BackgroundUnlike in ground vehicles, the statement of installed horsepower is not sufficient to understand how strong a tug is this is because other… …
68Information — as a concept has a diversity of meanings, from everyday usage to technical settings. Generally speaking, the concept of information is closely related to notions of constraint, communication, control, data, form, instruction, knowledge, meaning,… …
69method — The mode or manner or orderly sequence of events of a process or procedure. SEE ALSO: fixative, operation, procedure, stain, technique. [G. methodos; fr. meta, after, + hodos, way] Abell Kendall m. a …
70Diabetes in dogs — Illustration of a dog s pancreas. Cell islet in the illustration refers to a pancreatic cell in the Islets of Langerhans, which contain insulin producing beta cells and other endocrine related cells. Permanent damage to these beta cells results… …
