Knowra2019 redefinition of SI base unitsLinked fromLinked fromThe 16 pages that link to 2019 redefinition of SI base units, each with the reason it gives.All 16Broader topic 5Related 11International System of UnitsBroader topic: It completed the transition away from definitions tied to material objects.Avogadro constantBroader topic: It made the Avogadro constant's stated value exact by definition.KelvinBroader topic: It replaced the water triple point with the fixed Boltzmann constant as the kelvin's defining basis.General Conference on Weights and MeasuresBroader topic: The Conference approved the shift from artifact-dependent definitions to fixed constants.Amount of substanceBroader topic: It made the Avogadro constant exact and thereby gave the mole its present definition.