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The kilogram (also kilogramme [1]) is the base unit of mass in the International System of Units (SI), having the unit symbol kg. It is a widely used measure in science, engineering and commerce worldwide, and is often simply called a kilo colloquially. [2] It means 'one thousand grams '.
The International Prototype of the Kilogram (referred to by metrologists as the IPK or Le Grand K; sometimes called the ur -kilogram, [1] [2] or urkilogram, [3] particularly by German-language authors writing in English [3] [4]: 30 [5] : 64 ) is an object whose mass was used to define the kilogram from 1889, when it replaced the Kilogramme des ...
A kerosene bottle, containing blue-dyed kerosene. Kerosene, or paraffin, is a combustible hydrocarbon liquid which is derived from petroleum. It is widely used as a fuel in aviation as well as households. Its name derives from Greek: κηρός ( kērós) meaning "wax", and was registered as a trademark by Nova Scotia geologist and inventor ...
International Association for the Physical Sciences of the Oceans (IAPSO) standard seawater. Salinity ( / səˈlɪnɪti /) is the saltiness or amount of salt dissolved in a body of water, called saline water (see also soil salinity ). It is usually measured in g/L or g/kg (grams of salt per liter/kilogram of water; the latter is dimensionless ...
Il chilogrammo (grafia alternativa: kilogrammo), nell'uso parlato comunemente chilo (simbolo: kg), è l'unità di misura di base della massa nel Sistema internazionale di unità di misura (SI) corrispondente alla massa di ≈4,595×107 mP, (relazione con la massa unitaria di Planck).
The Kibble balance is a more accurate version of the ampere balance, an early current measuring instrument in which the force between two current-carrying coils of wire is measured and then used to calculate the magnitude of the current. The Kibble balance operates in the opposite sense; the current in the coils set very precisely by the Planck ...
