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Magnetic pole reversal

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Magnetic pole reversal
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scalyblueUser avatarPosts: 1417Joined: Sun Aug 30, 2009 3:02 am

Post Re: Magnetic pole reversal

I wonder how much energy it would actually take to affect the earth's rotation, not that it could possibly be applied...it would be like bacteria building microscopic rockets anchored a tiny partway into the shell of an egg in order to alter the rotational speed of the yolk
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Sun Dec 27, 2009 4:43 am
ExeFBMUser avatarPosts: 169Joined: Sat Feb 21, 2009 10:39 pm

Post Re: Magnetic pole reversal

MRaverz wrote:So we're stuffed? D;


Magnetic pole reversals have happened a lot in the Earths history, and there's not a huge effect on life, or mass extinction events in the fossil record. If you want to worry about something, I'd go for gamma ray bursts!
Sun Dec 27, 2009 12:27 pm
scalyblueUser avatarPosts: 1417Joined: Sun Aug 30, 2009 3:02 am

Post Re: Magnetic pole reversal

ExeFBM wrote:
MRaverz wrote:So we're stuffed? D;


Magnetic pole reversals have happened a lot in the Earths history, and there's not a huge effect on life, or mass extinction events in the fossil record. If you want to worry about something, I'd go for gamma ray bursts!


Isn't there one aimed right our general direction? That--would--suck. Not that we'd even know.
_________________
悪夢の王の一片よ
空のいましめ解き放たれし
凍れる黒き虚無の刃よ
我が力 我が身となりて
共に滅びの道を歩まん
神々の魂すらも打ち砕き
Sun Dec 27, 2009 3:48 pm
MRaverzPosts: 1838Joined: Sun Jul 26, 2009 10:00 am Gender: Pinecone

Post Re: Magnetic pole reversal

ExeFBM wrote:
MRaverz wrote:So we're stuffed? D;


Magnetic pole reversals have happened a lot in the Earths history, and there's not a huge effect on life, or mass extinction events in the fossil record. If you want to worry about something, I'd go for gamma ray bursts!

I was referring to the weakening of the magnetic field that Pulsar mentioned, which would decrease our defence against cosmic rays.
Sun Dec 27, 2009 3:58 pm
5810SingerPosts: 982Joined: Sat Nov 28, 2009 2:51 pm

Post Re: Magnetic pole reversal

MRaverz wrote: So we're stuffed? D;


Have you googled about this yet?

In case you can't be bothered here's a layman's guide:

http://www.youtube.com/watch?v=9tfLA1vKlfE

It covers the main points, there are better vids and there are worse ones, this one's adequate.

BTW "The Core" is one of the most pathetically bad movies ever made, so don't get worked up over those scenes.
Sun Dec 27, 2009 4:05 pm
MRaverzPosts: 1838Joined: Sun Jul 26, 2009 10:00 am Gender: Pinecone

Post Re: Magnetic pole reversal

5810Singer wrote:
MRaverz wrote: So we're stuffed? D;


Have you googled about this yet?

In case you can't be bothered here's a layman's guide:

http://www.youtube.com/watch?v=9tfLA1vKlfE

It covers the main points, there are better vids and there are worse ones, this one's adequate.

BTW "The Core" is one of the most pathetically bad movies ever made, so don't get worked up over those scenes.

Look at my previous post; I was referring to Pulsar's mention of the weakening of the magnetic field.
I am already aware of magnetic pole reversal and it's cycles.
Sun Dec 27, 2009 4:37 pm
5810SingerPosts: 982Joined: Sat Nov 28, 2009 2:51 pm

Post Re: Magnetic pole reversal

MRaverz wrote:
5810Singer wrote: Look at my previous post; I was referring to Pulsar's mention of the weakening of the magnetic field.
I am already aware of magnetic pole reversal and it's cycles.



The current weakening is thought to be a natural part of the pole reversal cycle, that's why I posted the link.
Sun Dec 27, 2009 4:58 pm
MRaverzPosts: 1838Joined: Sun Jul 26, 2009 10:00 am Gender: Pinecone

Post Re: Magnetic pole reversal

5810Singer wrote:
MRaverz wrote:Look at my previous post; I was referring to Pulsar's mention of the weakening of the magnetic field.
I am already aware of magnetic pole reversal and it's cycles.

The current weakening is thought to be a natural part of the pole reversal cycle, that's why I posted the link.

Ahh, no one had addressed the link between the two. So magnetic field weakening is really nothing to worry about?
Sun Dec 27, 2009 5:14 pm
5810SingerPosts: 982Joined: Sat Nov 28, 2009 2:51 pm

Post Re: Magnetic pole reversal

MRaverz wrote: So magnetic field weakening is really nothing to worry about?


The current data tends towards that conclusion, yes.
Sun Dec 27, 2009 6:09 pm
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