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Nachrichten, Termine, Experten
Nachrichten, Termine, Experten
In der hochreinen Silicium-Kugel des Avogadro-Experiments spiegelt sich eine Kopie des internationalen Kilogramm-Prototyps, die letzte Verkörperung einer Einheit über einen physischen Körper. Die neue Kugel dagegen steht für die Definition auf der Grundlage von atomaren Eigenschaften bzw. Naturkonstanten.
(Foto: PTB)
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