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Quotes About Amplitudes

I suggested that we might compare earthquakes in terms of the measured amplitudes recorded at these stations, with an appropriate correction for distance.
~ Charles Francis Richter
Libchaber's spectrum diagrams showed vividly the precise pattern of period-doubling predicted by the theory. The spikes of new frequencies stand out clearly above the experimental noise. Feigenbaum's scaling theory predicted not only when and where the new frequencies would arrive but also how strong they would be-their amplitudes.
~ James Gleick