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The standard SI prefixes can ... A hand is a unit of length used to measure the height of horses. One hand is four inches, ... hand|cm in}} → 14.1 hands (145 cm; 57 ...
Jacob Perkins (July 9, 1766 – July 30, 1849) was an American inventor, mechanical engineer and physicist based in the United Kingdom.Born in Newburyport, Massachusetts, Perkins was apprenticed to a goldsmith.
A large domestic refrigerator stands as tall as a person and may be about one metre (3 ft 3 in) wide with a capacity of 0.6 m 3 (21 cu ft). Refrigerators and freezers may be free standing, or built into a kitchen. The refrigerator allows the modern household to keep food fresh for longer than before.
Frederick McKinley Jones (May 17, 1893 – February 21, 1961) was an American inventor, entrepreneur, engineer, winner of the National Medal of Technology, and an inductee of the National Inventors Hall of Fame. [1] Jones innovated mobile refrigeration technology.
The United States retained the 1 / 39.37 -metre definition for surveying, producing a 2 millionth part difference between standard and US survey inches. [47] This is approximately 1 / 8 inch per mile; 12.7 kilometres is exactly 500,000 standard inches and exactly 499,999 survey inches.
Horizontal pitch (HP) is a unit of length defined by the Eurocard printed circuit board standard used to measure the horizontal width of rack mounted electronic equipment, similar to the rack unit (U) used to measure vertical heights of rack mounted equipment. One HP is 0.2 inches (1/5") or 5.08 millimetres wide.
The US Customary system of units makes use of set of dry units of capacity that have a similar set of names [Note 7] to those of liquid capacity, though different volumes: the dry pint having a volume of 33.6 cubic inches (550 ml) against the US fluid pint's volume of 28.875 cubic inches (473 ml) and the imperial pint of 34.68 cubic inches (568 ...
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 ]