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  • Measure for Measure
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Never judge a book by its cover

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The SI brochure has described the global measurement system for more than 50 years, and yet it has kept a low profile. Richard Brown leafs through its history.

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References

  1. The Metre Convention and Annexed Regulations (1875); https://www.bipm.org/en/metre-convention

  2. Proc. 9th CGPM, Resolution 6 (CGPM, 1948); https://www.bipm.org/en/-/resolution-cgpm-9-6

  3. SI Brochure: The International System of Units (SI) (BIPM, 2024); https://www.bipm.org/en/publications/si-brochure

  4. NPL. SI: The International System of Units 4th edn (HMSO, 1982).

  5. Brown, R. J. C. Metrology 3, 309–324 (2023).

    Article  Google Scholar 

  6. Quincey, P. Metrologia 53, 840–845 (2016).

    Article  ADS  Google Scholar 

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Correspondence to Richard J. C. Brown.

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Brown, R.J.C. Never judge a book by its cover. Nat. Phys. 21, 487 (2025). https://doi.org/10.1038/s41567-025-02794-z

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