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  2. JCB (heavy equipment manufacturer) - Wikipedia

    en.wikipedia.org/wiki/JCB_(heavy_equipment...

    The car is powered by two modified JCB 444 diesel power plants using a two-stage turbocharger to generate 750 bhp (560 kW), one engine driving the front wheels and the other the rear wheels. On 22 August 2006 the Dieselmax, driven by Andy Green , broke the diesel engine land speed record, attaining a speed of 328.767 mph (529.099 km/h).

  3. JCB - Wikipedia

    en.wikipedia.org/wiki/JCB

    JCB (heavy equipment manufacturer), a British manufacturer of heavy industrial and agricultural vehicles JCB (callsign JAYSEEBEE; ICAO airline code JCB); see List of airline codes (J) JCB (credit card company), originally Japan Credit Bureau, a credit card company based in Tokyo, Japan; JCB (wine label), a wine label by vinter Jean-Charles Boisset

  4. Plan for Establishing Uniformity in the Coinage, Weights, and ...

    en.wikipedia.org/wiki/Plan_for_Establishing...

    After correspondence with William Waring [4] and others, Jefferson proposed two systems of units in mid-1790. The first was evolutionary, and was based on refinement of the definitions of the units of the existing English system, as well as simplification of their relationship to each other. The second system was revolutionary, and was based on ...

  5. System of units of measurement - Wikipedia

    en.wikipedia.org/wiki/System_of_units_of_measurement

    This relationship is compatible with the decimal system of numbers and it contributes greatly to the convenience of metric units. In the early metric system there were two base units, the metre for length and the gram for mass. The other units of length and mass, and all units of area, volume, and derived units such as density were derived from ...

  6. Metric system - Wikipedia

    en.wikipedia.org/wiki/Metric_system

    The International System of Units is the modern metric system. It is based on the metre–kilogram–second–ampere (MKSA) system of units from early in the 20th century. [20] It also includes numerous coherent derived units for common quantities like power (watt) and irradience (lumen).

  7. International System of Units - Wikipedia

    en.wikipedia.org/wiki/International_System_of_Units

    The systems formalised the concept of a collection of related units called a coherent system of units. In a coherent system, base units combine to define derived units without extra factors. [4]: 2 For example, using metre per second is coherent in a system that uses metre for length and second for time, but kilometre per hour is not coherent.

  8. Historical definitions of the SI base units - Wikipedia

    en.wikipedia.org/wiki/Historical_definitions_of...

    The Celsius scale: the Kelvin scale uses the degree Celsius for its unit increment, but is a thermodynamic scale (0 K is absolute zero). Θ mole: mol amount of substance "1. The mole is the amount of substance of a system which contains as many elementary entities as there are atoms in 0.012 kilogram of carbon 12; its symbol is 'mol'. 2.

  9. Pace (unit) - Wikipedia

    en.wikipedia.org/wiki/Pace_(unit)

    In the United States the pace is an uncommon customary unit of length denoting a brisk single step and equal to 2 + 1 ⁄ 2 feet or 30.0 inches or 76.2 centimetres. [ 3 ] [ 4 ] The Ancient Roman pace ( Latin : passus ) was notionally the distance of a full stride from the position of one heel where it raised off of the ground to where it set ...