what is the science behind calibration weights ? How can we be so sure that the weight we’ve been using to calibrate is exact and not a few decimals off, which would make the concept of density completely wrong ?
In: Physics
The ELI5:
Calibration weights are mostly made by a single company and that company does a very good job of making all their weights the same. There’s a whole business of making ‘official’ standard weights and measures. And organizations that get together to compare and certify these standard weights and measures.
Depending on how accurate you need your measurement determines how fancy your calibration weight must be.
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