"The more precise the measurement of position, the more imprecise the measurement of momentum, and vice versa."
— Measurement

January 1, 1970

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Original Language: English

Sources

Werner Heisenberg Initial statement of the Uncertainty principle in "Über den anschaulichen Inhalt der quantentheoretischen Kinematik und Mechanik" in Zeitschrift für Physik, 43 (1927).