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pound force-inch: lb.ft: lb⋅ft: pound force-foot: Nm: N⋅m: newton-metre: ... 9.2+3/4|hand|cm in}} → 9.2 + 3 ⁄ 4 hands (98 cm; 38.75 inches) {{convert|9.2+3/4 ...
1 pound per square inch (psi) ≈ 6,895 Pa; Torque 1 pound-foot ≈ 1.356 N⋅m; Insulation 1 R-value (ft 2 ⋅°F⋅h/Btu) ≈ 0.1761 R SI (K⋅m 2 /W) Various combination units are in common use; these are straightforwardly defined based on the above basic units. Sizing systems are used for various items in commerce, several of which are U.S ...
Railroads use the standard gauge of 4 feet 8 + 1 ⁄ 2 inches, as does most of Europe (where it is expressed instead as 1,435 mm). MPH and smaller km/h values on speedometer U.S. Federal Motor Vehicle Safety Standard 101, which governs vehicle controls and displays, permits speedometers to display miles per hour (MPH) or both MPH and km/h. [ 110 ]
By default, the output value is rounded to adjust its precision to match that of the input. An input such as 1234 is interpreted as 1234 ± 0.5, while 1200 is interpreted as 1200 ± 50, and the output value is displayed accordingly, taking into account the scale factor used in the conversion.
Of particular interest was the rood which was 15 North German feet in length, the North German foot being equivalent to 335 mm (13.2 inches). [3]: 50 Craftsmen, on the other hand used a shorter Roman foot. The standard Troy pound, destroyed in a fire in 1834. Standardization of weights and measures was a recurring issue for monarchs.
Under the Harappan linear measures, Indus cities during the Bronze Age used a foot of 13.2 inches (335 mm) and a cubit of 20.8 inches (528 mm). [11] The Egyptian equivalent of the foot—a measure of four palms or 16 digits—was known as the djeser and has been reconstructed as about 30 cm (11.8 in).
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In the evolutionary approach, the foot was to be derived from these lengths by a simple integer factor, which would be either three (pendulum) or five (rod), i.e. lengthening it from the traditional value of about 304 mm by slightly over 1 inch to ca. 331 mm or shortening it by about a quarter of an inch to ca. 298 mm.