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by EricBurnett
3561 days ago
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Tangent: orders of magnitude are exponential - if you want to say "half an order if magnitude" you have to do it along the exponential curve. 5x is about 0.7 orders of magnitude; half an order of magnitude is a bit over 3x. |
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Orders of Magnitude, n; a class in a system of classification determined by size, each class being a number of times (usually ten) greater or smaller than the one before."
There are very few disciplines where OOM is done by exponential form (astronomy/star magnitude being one of them.) It's almost always base-ten. When you use electrical conductivity in mineral identification, you're always multiplying a number by ten multiple times over. The effect of that? You either add or remove an equal amount of zeros to the original number being multiplied.