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Redefinition of the SI unit kilogram – background and meaning

This fascinating video explains the background of the 1 kg redefinition and the effect this change will have on the weighing world.

  • International System of Units
  • metrology
  • Planck‘s constant
  • Avogadro Constant
  • Avogadro experiment
  • Watt balances
  • Watt balance experiment
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