(Encyclopedia) English units of measurement, principal system of weights and measures used in a few nations, the only major industrial one being the United States. It actually consists of two related…
(Encyclopedia) power, in physics, time rate of doing work or of producing or expending energy. The unit of power based on the English units of measurement is the horsepower, devised for describing…
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(Encyclopedia) kilogram, abbr. kg, fundamental unit of mass in the metric system, defined as the mass of the International Prototype Kilogram, a platinum-iridium cylinder kept at Sèvres, France, near…
