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Dimensional quantities such as length, mass and charge, i.e., numbers combined with a conventional unit, are essential components of theories in the sciences, especially physics, chemistry and biology. Do they represent a world with absolute physical magnitudes, or are they merely magnitude ratios in disguise? Would we notice a difference if all the distances or charges in the world suddenly doubled? These central questions of this Element are illustrated by imagining how one would convey the meaning of a kilogram to aliens if one were only allowed to communicate via Morse code.
- Format: Inbunden
- ISBN: 9781009467827
- Språk: Engelska
- Antal sidor: 58
- Utgivningsdatum: 2024-04-04
- Förlag: Cambridge University Press