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Politics : Foreign Affairs Discussion Group -- Ignore unavailable to you. Want to Upgrade?

To: Hawkmoon who wrote (20437)	3/2/2002 10:55:42 AM
From: maceng2	Read Replies (2) \| Respond to of 281500

have theorized that the earth's magnetic pole has changed directions every couple of million years The New Scientist recently ran an in depth article on that subject. I could dig it up but you have to be a subscriber. Yep there is plenty of evidence to prove the earth's magnetic field reverses every million years or so. Anway, there are mathematical models being built that tries to simulate the earth's magnetic field. Experimental evidence is needed to explore the theory further. So, experiments are going ahead. Just off the top of my head, one experiment intends to use several tons of molten sodium whirling around in a sphere!

To: Hawkmoon who wrote (20437)	3/2/2002 1:13:18 PM
From: Nadine Carroll	Read Replies (1) \| Respond to of 281500

The Arabs' Berlin Wall Message 17140189

To: Hawkmoon who wrote (20437)	3/19/2002 2:33:07 PM
From: maceng2	Read Replies (2) \| Respond to of 281500

Well, it may be getting thinner up north, but the ice sheet is getting thicker down south.. Are you sure? nsidc.org In terms of volume, the amount of ice released in this short time is 720 billion tons a slightly larger number then the per annum accumulation in your link. However, an investigation by scientists who studied the shrinkage and expansion of ice using satellite radars has found that rather than losing about 21 billion tons of ice a year, west Antarctica is accumulating nearly 27 billion tons. rense.com