万物简史:PART III CH 9威力巨大的原子（19）
Finally, in 1926, Heisenberg came up with [-1-], producing a new discipline that came to be known as quantum mechanics. At the heart of it was Heisenberg's Uncertainty Principle, which states that the electron is a particle but a particle that can be described in terms of waves. [---2---] Any attempt to measure one will [-3-] disturb the other. [---4---] There is a little uncertainty about the use of the word uncertainty [-5-] Heisenberg's principle. Michael Frayn, in an afterword to his play Copenhagen, notes that several words in German-Unsicherheit, Unscharfe, Unbestimmtheit-have been used by various translators, [-6-] . Frayn suggests that indeterminacy would be a better word for the principle and indeterminability would be better still.