For frequency, a decade is a ratio of 10, akin to a bel. And in photography, a s... | Hacker News

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nayuki 46 days ago | parent | context | favorite | on: The scientific “unit” we call the decibel

For frequency, a decade is a ratio of 10, akin to a bel. And in photography, a stop or an EV is a factor of 2, akin to an octave. https://en.wikipedia.org/wiki/Logarithmic_scale#Common_uses

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