2006-10-25 06:32:16 · 6 answers · asked by bob v 2 in Science & Mathematics ➔ Earth Sciences & Geology
SURE!
It has MANY times.
We are long overdue.
2006-10-25 06:38:31 · answer #1 · answered by Moebuggy 3 · 0⤊ 0⤋
In fact, the magnetic polarity of the earth is believed to have flipped many times in the past. The reported average interval for this occurence is about 250,000 years, and it has been about 780,000 years since it has last occurs. At this time, however, scientists are unable to predict when this will occur again.
2006-10-25 13:37:21 · answer #2 · answered by locke9k 2 · 2⤊ 0⤋
If the past is any indication of the future, then the magnetic polarity of the Earth has to switch.
2006-10-26 14:11:39 · answer #3 · answered by Amphibolite 7 · 0⤊ 0⤋
I don't find that this is so,and if it is you are all dead. the solar winds colliding with our magnetic field is what creates the Van Allen belt that protects us from the suns radiation. So if it flips it should be very quick as we will have no protection . There is lots of evidence that it is possible . I hope not.
2006-10-25 15:40:48 · answer #4 · answered by JOHNNIE B 7 · 0⤊ 1⤋
Because it has done so many times in the past, there is every reason to believe it can and will happen again.
2006-10-25 15:13:51 · answer #5 · answered by Barbara W 3 · 0⤊ 0⤋
I just read it's getting weaker and weaker. In another 1,000 years or so, we may be in big trouble. That is if we don't destroy ourselves first...
2006-10-25 13:51:32 · answer #6 · answered by Vinegar Taster 7 · 0⤊ 0⤋