Kilogramme
Li kilogramme es li unité basic de masse in li Sistema International de Unités (SI), con li simbol kg.
It es un largmen usat mesura in scientie, tecnica, e comercie mundialmen, e es sovente solmen nominat un kilo familiarmen. It significa 'un mill grammes'.
Li kilogramme es definit in termines del seconde e li metre, ambi de quel es basat sur fundamental fisic constantes.
Li kilogramme esset originalmen definit in 1795 quam li masse de un litre de aqua. Li current definition de un kilogramme acorda con ti original definition a intra 30 partes per million. In 1799, li Kilogramme des Archives, fabricat de platin, viceat it quam li standarde de masse. In 1889, un cilindre de platin-iridium, li International Prototip del Kilogramme (IPK), devenit li standarde del unité de masse por li metric sistema e remanet to por 130 annus, ante li current standarde esset adoptet in 2019.
Vide anc
- Conversion de unités
- Masse
- SI unité basic
Referenties
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