The popular and practical Scientific Unit Conversion has been expanded, revised and updated here, to put even more engineering and academic conversions at your fingertips. This detailed guide is truly unique, giving accurate metric equivalents and conversion factors for no fewer than 10,000 scientific units with detailed descriptions of over 2,000. It covers the full gamut of science, technology and medicine, and deals with US, British, conventional metric, historic and SI units. This new edition includes new tables - presenting, for example, the detailed chronology of the definitions of the meter prototype, regional variations of old French units, the International Temperature Scale of 1990 (IPTS 1990) and improved tables in Ancient Times systems of measures. Additions to the A-Z listing of units - such as the G unit for the radiochemical yield either in the cgs or the SI systems, several units of turbidity, the pH definition... An updated listing of numerous US professional societies, with at least 20 new entries to the list. Updated bibliography and references. The pocket-sized format and slot-in user guide bookmark makes this handy and user-friendly, and renders the extraction of relevant information as simple as possible. It is a great time-saver, and is a perfect addition to any research department, engineer's, scientist's or student's library.