By Donald Fenna
This complete and authoritative dictionary offers transparent definitions of devices, prefixes, and types of weights and measures in the Systeme overseas (SI), in addition to conventional, and industry-specific devices. it is usually normal old and clinical historical past, masking the improvement of the sequential definitions and sizing of devices. This new reference paintings will turn out important to specialist scientists, engineers, technicians in addition to to scholars and the overall person.
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This complete and authoritative dictionary offers transparent definitions of devices, prefixes, and kinds of weights and measures in the Systeme foreign (SI), in addition to conventional, and industry-specific devices. it is usually common ancient and clinical historical past, overlaying the advance of the sequential definitions and sizing of devices.
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Additional info for A Dictionary of Weights, Measures, and Units
6115~ ft). 32~ m). 456 m). , cal. thermodynamics, nutrition See calorie. calendar time A scheme for grouping, labelling, and thereby distinguishing the individual days. e. about 12 of the lunar periods. (As discussed under month and year, these periods exist in several forms; here we are concerned with the obvious period for each, explicitly the f synodic month and the "tropical year. ) Unfortunately, neither grouping is an exact number of days, nor is the year an exact multiple of the natural month.
367 717 ft 3 -atmos). History The full name 'British thermal unit' appears to have been adopted in the 1870s to differentiate it from other thermal units. Previously and continuingly it was also called the British unit of heat and plainly heat unit, the latter accorded the symbol u. , bushel volume British/American Measure for grains, etc. 368 72~ L). The Act of 1824 that introduced BI specified striken measurement for liquids and 'for dry Goods not measured by heaped Measure', going on to cite coal, lime, fish, potatoes, and fruits as specific exceptions.
System. u. British Wire Gauge See gauge. Brix [A. F. W. 5°C; the degree of such a scale is identically the percentage point. See also relative volumic mass. , paper and printing See paper size. BSI [British Standards Institute] photography See film speed. B. U. u. u, Btu electromagnetics UK See Board of Trade unit. U. in UK to differentiate it from fBoard of Trade unit) The energy required to raise the temperature of 1 pound of water by 1 degree Fahrenheit. Since the precise amount is dependent on the starting temperature, any use of the term requires an acknowledgement of this.
A Dictionary of Weights, Measures, and Units by Donald Fenna
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