(I though this was the
science forum?)
From
Mystery of wobbly Earth solvedThe century-old mystery of why the Earth 'wobbles' has been solved by a NASA scientist studying the behaviour of oceans.
The Chandler wobble, named after its 1891 discoverer, Seth Carlo Chandler Jr, is one of several wobbles the Earth makes as it rotates on its axis. Scientists who have been aware of its presence, for more than 100 years, have been stumped on the reasons for the effect.
Now, Dr Jeff Gross from NASA's Jet Propulsion Laboratory says the wobble is due to an ocean running hot and cold and the vagaries of changing oceanic circulation. His research will published in the August edition of the (US)Geophysical Research Letters.
This would therefore suggest some change in ocean currents, which is potentially... interesting.
I can't get any of the data plots to open, though, so I couldn't really say.
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