A basic introduction to the metric system. Covers: the three classes of SI units & the SI prefixes; units outside the SI; rules & style conventions for printing & using units; rules & style conventions for expressing values of quantities; comments on some quantities & their units; rules & style conventions for spelling unit names; printing & using symbols & numbers in scientific & technical documents; & check list for reviewing manuscripts. Appendix: definitions of SI base units & the radian & Steradian; conversion factors, & comments on the references of the SI for the U.S. Extensive bibliography.

A guide to assist users of the metric system (Internat. System of Units; SI), to inform them of changes in the SI and in SI usage. Contents: (1) Intro.; (2) NIST Policy on the Use of the SI; (3) Other Sources of Info. on the SI; (4) The Two Classes of SI Units and the SI Prefixes; (5) Units Outside the SI; (6) Rules and Style Conventions for Printing and Using Units; (7) Rules and Style Conventions for Expressing Values of Quantities; (8) Comments on Some Quantities and Their Units; (9) Rules and Style Conventions for Spelling Unit Names; (10) More on Printing and Using Symbols and Numbers in Scientific and Technical Documents; Appendix A: Definitions of the SI Base Units; Appendix B: Conversion Factors. Illustrations.

Prepared by the IUPAC Physical Chemistry Division this definitive manual, now in its third edition, is designed to improve the exchange of scientific information among the readers in different disciplines and across different nations. This book has been systematically brought up to date and new sections added to reflect the increasing volume of scientific literature and terminology and expressions being used. The Third Edition reflects the experience of the contributors with the previous editions and the comments and feedback have been integrated into this essential resource. This edition has been compiled in machine-readable form and will be available online.

This book sets out to demonstrate the purpose and critical approach that should be made to all experimental work in physics. It does not describe a systematic course in practical work. The present edition retains the basic outlook of earlier editions, but modifications have been made in response to important changes in computational and experimental methods in the past decade. The text is in three parts. The first deals with the statistical treatment of data, and here the text has been extensively revised to take account of the now widespread use of electronic calculators. The second deals with experimental methods, giving details of particular experiments that demonstrate the art and craft of the experimenter. The third part deals with such essential matters as keeping efficient records, accuracy in arithmetic, and writing good, scientific English. Copyright © Libri GmbH. All rights reserved.

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.

Wandmacher and Johnson provide guidance for practicing engineers, students, and educators who are adopting and using the International System of Units in their engineering work.