Schuler pendulum
English
editEtymology
editFrom Max Schuler, German physicist.
Noun
editSchuler pendulum (plural Schuler pendulums)
- (physics) Any pendulum having a period equal to that of a hypothetical pendulum whose length is equal to the Earth's radius (84.4 minutes); its arm will remain locally vertical when the pivot is moved and is therefore the basis of navigational instruments