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Published in a pocket book format for ease of use, this is a truly unique and practical guide giving accurate metric equivalents and conversion factors for no fewer than 10,000 scientific units. Cardarelli has spent many years building up this complete range of US, British, conventional metric, historic systems and SI units, covering the worlds of science, technology and medicine. The charts and tables are readily referenced and coloured tabs denote the different sections while a slot-in user guide acts as a bookmark.
Mankind has a fascination with measurement. Down the centuries we have produced a plethora of incompatible and duplicatory systems for measuring everything from the width of an Egyptian pyramid to the concentration of radioactivity near a nuclear reactor and the value of the fine structure constant. With the introduction first of the metric system and of its successor the Système International d'Unités (SI), the scientific community has established a standard method of measurement based on only seven core units. The Encyclopaedia of Scientific Units, Weights and Measures converts the huge variety of units from all over the world in every period of recorded history into units of the SI. Featuring: - An A - Z of conversion tables for over 10,000 units of measurements. - Tables of the fundamental constants of nature with their units. - Listings of professional societies, and national standardization bodies for easy reference. - An extensive bibliography detailing further reading on the multifarious aspects of measurement and its units. This huge work is simply a "must have" for any reference library frequented by scientists of any discipline or by those with historical interests in units of measurement such as archaeologists.
The general purpose of this handbook is to prepare scientists, engineers, and technicians of the U.S. Army Materiel Development and Readiness Command (DARCOM) for increasing use of the International Systems of Units (SI) or, as it is frequently referred to, the "metric system." The specific objectives are to give DARCOM personnel (1) the tools required to convert the units of physical quantities and equations to SI units, (2) the information needed to correctly interpret specifications and documentation using the SI, and (3) the information needed to generate specifications and prepared documentation in SI units. Chapter 1 presents a paragraph outline of the handbook to facilitate its use, and a brief history of the introduction of and increasing use of the SI in the US. Definitions, rules, and conventions fundamental to the SI and its use are to be found in Chapters 2 and 3. Methods for converting non-SI units to SI units are given in Chapter 4. The methods make use of "unit equalities" and, if applied rigorously, will minimize or eliminate errors in unit conversions. A relatively simple method is presented for modifying equations such that equations derived for use with non-SI units can be used with SI units. Tables of unit equalities, experimentally determined constants expressed in SI units, and dimensionless quantities are given in Chapter 5. Chapter 6 is concerned with the use of SI in military engineering drawings, and covers dual dimensioning and conversion of the units of dimensions. Sample calculations illustrating methods of converting units and modifying equations are given in Chapter 7.