bride of colorstruck

[Ranjit Bhatnagar]

Subterranean cyclones?  Hah!  What a crazy idea!

	http://www.newscientist.com/ns/19991113/nshorts.html#17

	HURRICANE OF ROCK | A SWIRLING vortex of molten rock has been
	found 3000 kilometres beneath the North Pole. 

	The Earth's magnetic field is thought to be generated by circulation
	in its molten outer core. By looking at historical measurements of the
	magnetic field, geophysicists Peter Olson and Jonathan Aurnou of
	Johns Hopkins University in Baltimore, Maryland, traced a flow of
	around a quarter of a degree a year in a region 2400 kilometres
	across (Nature, vol 402, p 170). "It has the structure of a giant
	hurricane," says Olson.

- ranjit