see my post...theit57 wrote:
ahhh...noCheez wrote:
Basically, this:theit57 wrote:
no, it just means that north will become south and east will become west and vise versa
http://upload.wikimedia.org/wikipedia/c … versed.jpg
its just the magnetic field, not the entire earth
Poll
Do you think that the Earth's magnetic field is going to flip?
| yes | 73% | 73% - 55 | ||||
| no | 26% | 26% - 20 | ||||
| Total: 75 | ||||||
Satellite WILL be affected..... all of them (or most) are protected from radition and solar flare (and wind) by the earth magnetic field. So when the field will be fluctuating (flipping) it will change form and expose some or all satellite around the earth to deep space radiation .... etc.PureFodder wrote:
..... most important directional information will be coming from GPS which is unaffected by the Earth's magnetic field.
just an example with a regular ''healthy'' field:
http://www.windows.ucar.edu/spaceweather/blackout.html
The HydroQuebec Blackout of March 1989
On March 13, 1989, at 2:44 am, a transformer failure on one of the main power transmission lines in the HydroQuebec system precipitated a catastrophic collapse of the entire power grid. The string of events that produced the collapse took only 90 seconds from start to finish. There was no time for any meaningful intervention. The transformer failure was a direct consequence of ground induced currents from a space weather disturbance high in the atmosphere. 6 million people lost electrical power for 9 or more hours.
The space weather disturbance that produced this devastation was a great magnetic storm. Great magnetic storms are awesome disturbances in the near-Earth space environment that occur relatively rarely. The last five occurred in February 1986, March 1989, March 1991, November 1991 and May 1992. The frequency of large and great storms increases markedly as we enter the maximum in the solar activity cycle. The next predicted maximum is in the year 2000 (the last solar maximum was in 1989). Better warning of impending space weather events would allow power companies to take steps to reduce the load on sensitive circuits, delay maintenance and equipment replacement, prevent the development of large potential drops by selectively grounding sensitive devices and inteligently deal with systems designed to automatically protect the network during the duration of the event. This is the best way to prevent costly and dangerous black out situations triggered by space weather events.
Now think what will happen with a flipping one. We could witness a lot more of those ...... of stronger magnitude. Or have to fly commercial airliner at lower altitude not to expose the passenger to more radiation...... god i could go on.
Are we doomed???? don't think so. Will it be a hard time ???? probably.
My understanding is that there is no solid theory by which 180° magnetic pole switch can be explained.
The strength varying, yes, but a 180° pole switch, no.
There is however a solid scientific explanation of Crustal Displacement.
And crustal displacement also fits a much wider range of evidence than pole-reversal.
The strength varying, yes, but a 180° pole switch, no.
There is however a solid scientific explanation of Crustal Displacement.
And crustal displacement also fits a much wider range of evidence than pole-reversal.
You ask what we think don't get mad its what I think. If you don't want to know what people think don't ask...duh
OK be serious
it might happen and if it did how many would be left to talk about it. what would happen to the earth? all of the things that live on it not just humans? this is something that has been talked about for the last 80 years. what would happen to the moon. not to worry any of you but the moon is slowly moving away from the earth. think this might have something to do with all this talk. ????
if you sit down and really think about it you should be more scared that some idiot is going to press the little button and screw all of us!
I did read everything you all wrote. Even the best minds cant agree that it will happen or when if it does happen...Theory is int great.....by the way its what you based your poll off of THEORY not fact. I do agree that the magnetic fields are getting weaker.. I was asking if you think that the moon moving away from the Earth has something to do with it. As for the question of who would be left is this ( all it takes for some people to flip out is something to happen. like i don't know fart on the plane then see who jumps)
If you really want to know when it happens watch the birds.
I'm more scared that some ass is going to start dropping nukes<-----not a theory! It really happens! An now that more country and radical have them who know.
P.S. don't get pissy its only up for debate that's why there is the poll.
P.S.S. don't hate it only spreads to you _-_- (you pick the word that fits for you)
Magnetic Storm homepage
If all the compasses in the world started pointing south rather than north, many people might think something very strange, very unusual, and possibly very dangerous was going on. Doomsayers would have a field day proclaiming the end is nigh, while more rational persons might head straight to scientists for an explanation.
Fortunately, those scientists in the know—paleomagnetists, to be exact—would have a ready answer. Such reversals in the Earth's magnetic field, they'd tell you, are, roughly speaking, as common as ice ages. That is, they're terrifically infrequent by human standards, but in geologic terms they happen all the time. As the time line at right shows, hundreds of times in our planet's history the polarity of the magnetic shield ensheathing the globe has gone from "normal," our current orientation to the north, to "reversed," and back again.
The Earth is not alone in this fickleness: The sun's magnetic shield appears to reverse its polarity approximately every 11 years. Even our Milky Way galaxy is magnetized, and experts say it probably reverses its polarity as well. Moreover, while a severe weakening or disappearance of the magnetic field would lay us open to harmful radiation from the sun, there's little evidence to date that "flips" per se inflict any lasting damage (see Impact on Animals).
It might sound as if scientists have all the answers regarding magnetic reversals. But actually they know very little about them. Basic questions haunt researchers: What physical processes within the Earth trigger reversals? Why do the durations and frequencies of both normal and reversed states seem random? Why is there such a disproportionately long normal period between about 121 and 83 million years ago? Why does the reversal rate, at least during the past 160 million years, appear to peak around 12 million years ago?
All these questions remain unanswered, though experts like Dennis Kent, the Rutgers University geologist who supplied NOVA with updated figures for the time line, are hard at work trying to answer them. In the meantime, not to worry. Reversals happen on average only about once every 250,000 years, and they take hundreds if not thousands of years to complete.
Even the weakening currently under way may be a false alarm. The field often gets very weak, then bounces back, never having flipped. As Ron Merrill, a magnetic-field specialist at the University of Washington remarked when asked whether we're in for a reversal: "Ask me in 10,000 years, I'll give you a better answer." So hang on to your compass. For the foreseeable future, it should work as advertised.—Peter Tyson
OK be serious
it might happen and if it did how many would be left to talk about it. what would happen to the earth? all of the things that live on it not just humans? this is something that has been talked about for the last 80 years. what would happen to the moon. not to worry any of you but the moon is slowly moving away from the earth. think this might have something to do with all this talk. ????
if you sit down and really think about it you should be more scared that some idiot is going to press the little button and screw all of us!
I did read everything you all wrote. Even the best minds cant agree that it will happen or when if it does happen...Theory is int great.....by the way its what you based your poll off of THEORY not fact. I do agree that the magnetic fields are getting weaker.. I was asking if you think that the moon moving away from the Earth has something to do with it. As for the question of who would be left is this ( all it takes for some people to flip out is something to happen. like i don't know fart on the plane then see who jumps)
If you really want to know when it happens watch the birds.
I'm more scared that some ass is going to start dropping nukes<-----not a theory! It really happens! An now that more country and radical have them who know.
P.S. don't get pissy its only up for debate that's why there is the poll.
P.S.S. don't hate it only spreads to you _-_- (you pick the word that fits for you)
Magnetic Storm homepage
If all the compasses in the world started pointing south rather than north, many people might think something very strange, very unusual, and possibly very dangerous was going on. Doomsayers would have a field day proclaiming the end is nigh, while more rational persons might head straight to scientists for an explanation.
Fortunately, those scientists in the know—paleomagnetists, to be exact—would have a ready answer. Such reversals in the Earth's magnetic field, they'd tell you, are, roughly speaking, as common as ice ages. That is, they're terrifically infrequent by human standards, but in geologic terms they happen all the time. As the time line at right shows, hundreds of times in our planet's history the polarity of the magnetic shield ensheathing the globe has gone from "normal," our current orientation to the north, to "reversed," and back again.
The Earth is not alone in this fickleness: The sun's magnetic shield appears to reverse its polarity approximately every 11 years. Even our Milky Way galaxy is magnetized, and experts say it probably reverses its polarity as well. Moreover, while a severe weakening or disappearance of the magnetic field would lay us open to harmful radiation from the sun, there's little evidence to date that "flips" per se inflict any lasting damage (see Impact on Animals).
It might sound as if scientists have all the answers regarding magnetic reversals. But actually they know very little about them. Basic questions haunt researchers: What physical processes within the Earth trigger reversals? Why do the durations and frequencies of both normal and reversed states seem random? Why is there such a disproportionately long normal period between about 121 and 83 million years ago? Why does the reversal rate, at least during the past 160 million years, appear to peak around 12 million years ago?
All these questions remain unanswered, though experts like Dennis Kent, the Rutgers University geologist who supplied NOVA with updated figures for the time line, are hard at work trying to answer them. In the meantime, not to worry. Reversals happen on average only about once every 250,000 years, and they take hundreds if not thousands of years to complete.
Even the weakening currently under way may be a false alarm. The field often gets very weak, then bounces back, never having flipped. As Ron Merrill, a magnetic-field specialist at the University of Washington remarked when asked whether we're in for a reversal: "Ask me in 10,000 years, I'll give you a better answer." So hang on to your compass. For the foreseeable future, it should work as advertised.—Peter Tyson
Last edited by SmkenRez (2007-06-14 21:02:53)