Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A simple pendulum suspended from a long wire and set into motion along a meridian. The plane of motion appears to turn clockwise in the Northern Hemisphere and counterclockwise in the Southern Hemisphere, demonstrating the axial rotation of the earth.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun
Foucault's pendulum
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun pendulum with a long wire; can swing in any direction; the change in the swing plane demonstrates the earth's rotation
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
[After Jean Bernard Léon Foucault.]
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