Chan|dler wobble

Chan|dler wobble «CHAN dluhr»,

a slight eccentric oscillation of the earth on its axis recurring in cycles which last approximately 14 months: »

The Earth's pole undergoes a mutation, the Chandler wobble,…whose motion is somehow kept going despite the substantial effects of viscous damping forces (New Scientist and Science Journal).

╂[< Seth Carlo Chandler, 1846-1913, an American astronomer, who made a study of it]