单词 | Jean Bernard Leon Foucault |
释义 | Jean Bernard Leon Foucault (once / 5909656 pages) n WORD FAMILY Jean Bernard Leon Foucault n French physicist who determined the speed of light and showed that it travels slower in water than in air; invented the Foucault pendulum and the gyroscope (1819-1868) Syn|Exp Foucault physicist a scientist trained in physics |
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