If the Earth reversed rotation, would the magnetic poles automatically reverse as well?

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posted on Dec, 17 2012 @ 07:40 PM
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There is supposed proof that the magnetic poles have reversed many times in the earths history.

www.nasa.gov...

Could this be a result of a reverse in the earths rotation which may occur 12/21/2012





posted on Dec, 17 2012 @ 07:47 PM
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How does the earth reverse its rotation, I'm trying to visualize the braking, thrusting thing in my mind but damnnn!



posted on Dec, 17 2012 @ 07:51 PM
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reply to post by CyberTruth
 


No. It would take a mechanical force to drive the Earth in the opposite direction ie: gravity.

Either a large planet sized object hitting Earth, or a large object pulling on the Earth in the opposite direction rotation, or something to that effect.

The reversing of Earth's polarity has to do with electromagnetism and may involve inner core/outer core interaction or change.
edit on 17-12-2012 by ProperlyErrant because: (no reason given)



posted on Dec, 17 2012 @ 07:52 PM
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reply to post by CyberTruth
 


If the earth for whatever reason spontaneously started to spin on its axis in the opposite direction(which is highly unlikely without an ELE, large stellar object impacting with it, but I digress so for the sake of discussion) if, then from what I've studied the crustal displacement would not leave much if anything breathing at the end of the day. I'm certain there are more qualified people on here to explain it better though



posted on Dec, 17 2012 @ 07:59 PM
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LOL! If the earth started spinning the other way, which way the poles are facing would be the least of your concerns. Maybe you could see the magnetosphere glow as you're hurled into space and know which way things went.



posted on Dec, 17 2012 @ 08:01 PM
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The sun is a massive EM generator and the only thing i could think of that could cause that to happen.



posted on Dec, 17 2012 @ 08:05 PM
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Sorry, but the earth cannot just spontaneously "reverse rotation". This would violate conservation of angular momentum unless a torque is applied in the opposite direction of rotation until it reaches an angular velocity of equal magnitude in the opposite direction. Where is such a torque going to come from? A collision with a planet? Anything powerful enough to affect to provide the impulse required to do this would utterly obliterate all life as we know it.



posted on Dec, 17 2012 @ 08:14 PM
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reply to post by SilentKoala
 


instantaneously occurring yes it would be an ELE. but what if its been happening....running down like an old pocket watch?



posted on Dec, 17 2012 @ 08:14 PM
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There would be a LOT more to worry about if the Earth were to some how come screeching to a halt on it's spin.

The Earth masses 5.9736×10^24 kg.
The velocity that it spins on it's axis is 1,674.4 km/h ( or 465.1 m/s)

That adds up to a LOT of energy. How much energy?

Well KE = 1/2(mv^2), where KE is Kinetic Energy measured in Joules, m is the mass and v is the velocity.

That comes to 646,098,632,268,000,000,000,000,000,000 or 6.46098 x 10^29 Joules of energy.

How much is that?

Well 63 terajoules (or 63 x 10^12) were released by the atomic bomb that exploded over Hiroshima.
210 PetraJoules (or 210 x 10^15) is equivalent to about 50 megatons of TNT.

And we're talking about 6.46 x 10^29 !

That energy has to go somewhere since you can not create energy from nothing, nor destroy it.

Think of it another way: you're in a car going 60 mph when you slam into a brick wall and come to a complete halt. There's a reason why the car crumples up like that, and why if you're not wearing your seat belt, you can be thrown through the windshield.

Your body is still going 60 mph when the car stops suddenly like that, and will try to keep going.

In other words: right now you are sitting, standing, etc on something that's spinning at around 1,000 mph, which means you are too (and your house, car, etc). You don't want this ride we are on to suddenly stop. It would be very bad.



posted on Dec, 17 2012 @ 08:20 PM
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Originally posted by shaneslaughta
reply to post by SilentKoala
 


instantaneously occurring yes it would be an ELE. but what if its been happening....running down like an old pocket watch?


Then we would all notice the days getting longer, tides lasting longer and these would be obvious effects.


Everything is normal



posted on Dec, 17 2012 @ 08:20 PM
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The earth would only reverse spin if the magnetism stopped, which means the pole shift would be in full swing. It would be a magnetic pole shift that caused earth to stop rotating, by reaching 0 magnetism. So in reality, the pole shift would precede the reverse spin.



posted on Dec, 17 2012 @ 08:22 PM
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Originally posted by Unity_99
The earth would only reverse spin if the magnetism stopped, which means the pole shift would be in full swing. It would be a magnetic pole shift that caused earth to stop rotating, by reaching 0 magnetism. So in reality, the pole shift would precede the reverse spin.

Wrong, magnetism is not the cause of the Earth's spin. The Earth spins because there is no counter-torque acting to stop it.



posted on Dec, 17 2012 @ 08:23 PM
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Originally posted by Unity_99
The earth would only reverse spin if the magnetism stopped, which means the pole shift would be in full swing. It would be a magnetic pole shift that caused earth to stop rotating, by reaching 0 magnetism. So in reality, the pole shift would precede the reverse spin.


That is utter nonsense

The earths magnetic field is a byproduct of the thermal flow effects of the inner iron core.

If anything the magnetic field is a byproduct of, and not the source of the planets rotation


Edit.......if you are going to defend your (incorrect) assertation I'd love to know how you would explain the rotation then starting in the opposite direction as is claimed would happen?

Lets not forget that the magnetic field is incredibly weak.......

edit on 17-12-2012 by siliconpsychosis because: (no reason given)



posted on Dec, 17 2012 @ 08:25 PM
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Originally posted by Unity_99
The earth would only reverse spin if the magnetism stopped, which means the pole shift would be in full swing. It would be a magnetic pole shift that caused earth to stop rotating, by reaching 0 magnetism. So in reality, the pole shift would precede the reverse spin.


Wrong: electromagnetic energy has nothing to do with the Earth's physical spin.

If you want to stop the Earth from rotating, you would need to apply counter torque (a mechanical energy only) in the opposite direction of it's spin.

Specifically you would need 6.46098 x 10^29 Joules of energy to stop the Earth at the very least.

In order to make the Earth stop and then spin at the same velocity it's currently spinning in the opposite direction, you would need at least twice the amount of energy that I cited above.



posted on Dec, 17 2012 @ 08:26 PM
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Originally posted by eriktheawful
There would be a LOT more to worry about if the Earth were to some how come screeching to a halt on it's spin.

The Earth masses 5.9736×10^24 kg.
The velocity that it spins on it's axis is 1,674.4 km/h ( or 465.1 m/s)

That adds up to a LOT of energy. How much energy?

Well KE = 1/2(mv^2), where KE is Kinetic Energy measured in Joules, m is the mass and v is the velocity.

I think you should be using K-rot = (1/2)(I*w^2) but you'll get a similarly large number.
The problem is calculating the moment of inertia of the Earth. You can't just use (2/5)mr^2 because it's not a sphere of uniform mass density. The iron core is denser which would make its moment of inertia smaller than that of a solid sphere.



posted on Dec, 17 2012 @ 08:28 PM
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Originally posted by SilentKoala

Originally posted by eriktheawful
There would be a LOT more to worry about if the Earth were to some how come screeching to a halt on it's spin.

The Earth masses 5.9736×10^24 kg.
The velocity that it spins on it's axis is 1,674.4 km/h ( or 465.1 m/s)

That adds up to a LOT of energy. How much energy?

Well KE = 1/2(mv^2), where KE is Kinetic Energy measured in Joules, m is the mass and v is the velocity.

I think you should be using K-rot = (1/2)(I*w^2) but you'll get a similarly large number.
The problem is calculating the moment of inertia of the Earth. You can't just use (2/5)mr^2 because it's not a sphere of uniform mass density. The iron core is denser which would make its moment of inertia smaller than that of a solid sphere.


You are correct of course.

However I was trying to keep it KISS for those that are not familiar with physics.

As you pointed out, you still come out with a staggering number



posted on Dec, 17 2012 @ 08:28 PM
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Originally posted by eriktheawful

Originally posted by Unity_99
The earth would only reverse spin if the magnetism stopped, which means the pole shift would be in full swing. It would be a magnetic pole shift that caused earth to stop rotating, by reaching 0 magnetism. So in reality, the pole shift would precede the reverse spin.


Wrong: electromagnetic energy has nothing to do with the Earth's physical spin.

If you want to stop the Earth from rotating, you would need to apply counter torque (a mechanical energy only) in the opposite direction of it's spin.

Specifically you would need 6.46098 x 10^29 Joules of energy to stop the Earth at the very least.

In order to make the Earth stop and then spin at the same velocity it's currently spinning in the opposite direction, you would need at least twice the amount of energy that I cited above.



Can you come up with any sort of visualization for that amount of energy as is so mind bogglingly huge l.....does not compute lol

Mayble like a unit of time of total solar output or something?
edit on 17-12-2012 by siliconpsychosis because: (no reason given)



posted on Dec, 17 2012 @ 08:30 PM
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reply to post by siliconpsychosis
 


not of it happens over millions of years. which is conceivable considering the 14 billion year old universe.

What would happen if the magnetic field of the sun was to stop and start again in an instant?

We can no longer see the bow shock of our own suns solar winds traveling at over a million mph.

They say that the heliosphere has shrunk by 25% in the last 50 years.

what happens if it collapses for a brief instant that restarts. could that sudden change of the magnetic output of the sun cause a magnetic change on earth.....were talking the strongest magnetic field generator in the known verse here.



posted on Dec, 17 2012 @ 08:32 PM
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Originally posted by shaneslaughta
reply to post by siliconpsychosis
 


not of it happens over millions of years. which is conceivable considering the 14 billion year old universe.

What would happen if the magnetic field of the sun was to stop and start again in an instant?

We can no longer see the bow shock of our own suns solar winds traveling at over a million mph.

They say that the heliosphere has shrunk by 25% in the last 50 years.

what happens if it collapses for a brief instant that restarts. could that sudden change of the magnetic output of the sun cause a magnetic change on earth.....were talking the strongest magnetic field generator in the known verse here.


It isslowing, and always will until it reached solar tidal lock. But it iS extremely slow and as demonstrated, pretty much impossible for it to just stop



posted on Dec, 17 2012 @ 08:33 PM
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Originally posted by siliconpsychosis

Originally posted by eriktheawful

Originally posted by Unity_99
The earth would only reverse spin if the magnetism stopped, which means the pole shift would be in full swing. It would be a magnetic pole shift that caused earth to stop rotating, by reaching 0 magnetism. So in reality, the pole shift would precede the reverse spin.


Wrong: electromagnetic energy has nothing to do with the Earth's physical spin.

If you want to stop the Earth from rotating, you would need to apply counter torque (a mechanical energy only) in the opposite direction of it's spin.

Specifically you would need 6.46098 x 10^29 Joules of energy to stop the Earth at the very least.

In order to make the Earth stop and then spin at the same velocity it's currently spinning in the opposite direction, you would need at least twice the amount of energy that I cited above.



Can you come up with any sort of visualization for that amount of energy as is so mind bogglingly huge l.....does not compute lol

Mayble like a unit of time of total solar output or something?
edit on 17-12-2012 by siliconpsychosis because: (no reason given)


Here you go, a link to Joules:


The zettajoule (ZJ) is equal to 10^21 joules. Annual global energy consumption is approximately 0.5 ZJ


and


The yottajoule (YJ) is equal to 10^24 joules. This is approximately the amount of energy required to heat the entire volume of water on Earth by 1 °Celsius.
edit on 17-12-2012 by eriktheawful because: (no reason given)





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