Foucault's pendulum
English
Etymology
From the name of the French physicist Jean Bernard Léon Foucault.
Noun
Foucault's pendulum (plural Foucault's pendulums)
- A pendulum on a long wire, free to move in any direction; the plane of its motion appears to turn (clockwise in the Northern Hemisphere) as the world turns beneath it.
Translations
pendulum free to move in any direction
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See also
- Words from Foucault's Pendulum (a novel)