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单词 foucault pendulum
释义 foucault pendulum
noun
Usage: usually capitalized F
Etymology: after J.B.L. Foucault
: a freely swinging pendulum that consists of a heavy mass suspended by a long line, that oscillates for long periods in the original plane of motion, and that is used to demonstrate the rotation of the earth
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更新时间:2024/9/20 16:59:12