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AMAZON RIVER

 
 
hamburger
 
  1  
Reply Fri 3 Nov, 2006 06:01 pm
always glad to provide to your 'amazement' Laughing !
we camped there some years ago - when we were just a bit younger Laughing . it's really quite an amazing sight .
we also walked out on the mudflats during low tide . mrs h looked at the towering rocks and wondered why there were all kinds of seaweed and shells stuck to the rocks as much as 20 feet above our heads . when i casually mentioned that the upcoming flood would reach the top of the rocks , she suggested (not so casually !) , that we might better get back on dry land !
hbg
0 Replies
 
rosborne979
 
  1  
Reply Fri 3 Nov, 2006 08:42 pm
littlek wrote:
Squinney - the poles 'flip' periodically. More specifically, the positive and negative charges change. As liquid rock comes up to fill the gap left as the oceanic rifts spread (as the continue to do), they register the polar magnetic charge. Then they harden and form the ocean floor. By looking at pieces of that spreading floor, scientists know that the charge has flipped - and that we are over due for another flip. What that means to us in our daily existence, I dunno.


The 'flips' can take several thousand years, during which time, the fields become variable and weaker.

This is not the type of event which occurs over night, or even in a single lifetime.
0 Replies
 
squinney
 
  1  
Reply Sat 4 Nov, 2006 06:27 am
I have read about the magnetic pole changes.

But, um, I was making a joke in my first post. A play on Mr. Hamburger and saying he was otherwise occupied 2 million years ago and then someone responded... Oh never mind. It isn't funny when I have explain it.

Carry on.
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hamburger
 
  1  
Reply Sat 4 Nov, 2006 10:42 am
...READY FOR NORTH/SOUTH POLE REVERSAL ?...
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