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Base units - defined by constants
metro
Seven SI units built from seven fixed constants: the metre from c (sealed), the kilogram from the Planck constant, the second from caesium. Anchored to nature.
source
Narrow Highway — metro
card id
card_metro_base_units
address
WIT.codex.FCT/base-units-defined-by-constants/REF.WITNESSED@narrow-highway
adjoining cards
- part of → Metrology — measurement and the SI — a pillar (Base units - defined by constants)
- connects at → The instruments — every verifier and validator, and where they join — the 6-constant measure spine defines the units
- connects at → Quantum mechanics — the quantum and its limits — the kilogram is fixed by the Planck constant
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