EQUATION REGISTRY

Light-propagation measurement relation

SI fixes the numerical value of c; r is the specified vacuum propagation path, not automatically an arbitrary coordinate distance.

Theory · FOUNDATIONEquation version 1.0.0

Based on the final manuscript · Preface; Chapter 1

ASD-WEB-MET-001
r=ct,c=299 792 458  m s−1r=ct,\quad c=299\,792\,458\;\mathrm{m\,s^{-1}}

SI fixes the numerical value of c; r is the specified vacuum propagation path, not automatically an arbitrary coordinate distance.
Chapter reference: Final consolidated manuscript · Chapter 1, Eq. (1.1); BIPM metre definition · ASD-BOOK-ddbade997b45

Source and ID

ASD-WEB-MET-001 is the stable website equation ID. It retains existing links and does not replace the manuscript reference. Use the copy button to obtain LaTeX.

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Adopted source, conditions and previous versions

Final consolidated manuscript · Chapter 1, Eq. (1.1); BIPM metre definition

SI fixes the numerical value of c; r is the specified vacuum propagation path, not automatically an arbitrary coordinate distance.

Conditions retained in this adoption

  • Same measurand, reference conditions and propagation/counting basis
  • LVE additionally uses moving configurations and path pairing

Specific unresolved source issues

  • FINAL-CH1-QUANTITY
  • FINAL-CH1-KRYPTON

Source locators: p0311 · p0371

Manuscript SHA-256: ddbade997b45913248e588953b1d27ccb9c7c206c3c8d992d3aef2364a64836e

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Previous source, retained as history

FND-3dde8d8e081d · 序章;第一章式(1.1);BIPM 米定义

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