Earth Loses Magnetism

BBC ^ | 1-1-2004 | Molly Bently

[Lazamataz]

We're all gonna die!!!!

[Lazamataz]

Possible human ancestors lived in Spain 780,000 years ago

No way.....

[TC Rider]

"Wes Clark introduces 8 point plan to restore Magnetism"

Dean advisor, Professor Albert Gore, has stated that Dean would utilize the Gore plan to restore the Earth's magnatism.

The Gore Plan would direct NASA to collect many asteroids and then form them into a giant magnet. The giant magnet would then be rubbed over the Earth, south to north, to restore the Earth's magnetic field.

[Faraday]

At the current rate of decline it would take 1,500 to 2,000 years to disappear.

News you can use.

[Lokibob]

I'm not going to argue, Laz, just click on the links.

[PatrickHenry]

PING. [This ping list is for the evolution side of evolution threads, and sometimes for other science topics. FReepmail me to be added or dropped.]

[TheRightGuy]

"Atkin's Vidicated -- Everyone Loses Weight!"
Doctors struggle to explain why
obese no longer means overweight!

[Lazamataz]

I'm not going to argue, Laz, just click on the links.

I hate clicking on the links.

[TheRightGuy]

OUCH!
< /hangover>

magnetism does not equal gravity

[ostephani]

Thanks for the laugh ::))

[spokeshave]

When magnets are banned only outlaws will have them

[aruanan]

Scientists have known for some time that the Earth's magnetic field is fading.

I remember reading a technical monograph about this back in 1972. I still have it in one box or another.

[aruanan]

The field is mainly dipolar - but there are anomalies

With just a little change:

The Democrat presidential field is mainly bipolar - but there are anomalies.

[inquest]

�I'm not s��������ure a charge is necessary...is there a charge on a bar magnet?

The molecules in a bar magnet have electronic orbitals that are aligned in a certain way, and kept in orientation by the pattern in which the molecules arrange themselves in the solid state. The moving electrons create the magnetic field.

With iron, my understanding is that each atom has a reasonably strong magnetic field, but there's nothing forcing them to align, and as such, random vibrations associated with temperature cause the individual fields to be constantly changing direction. Only when an outside magnetic field is imposed do the atomic fields line up, which enables iron to "transmit" magnetism that's applied to it.

Your analogy to the atmosphere makes a certain amount of sense, but it still leaves me with the question of what prevents the charges from rebalancing. The atmosphere is a very poor conductor of electricity, so it's easy to see how imbalances of charge can build up. But in a metallic core, I would think that imbalances should dissipate before they even build up. But of course, I'm far from being an expert in all of this.

[null and void]

How did a woolly mammoth freeze with tropical flowers in his mouth and stomach?

The mammoths liked to feed in the periglacial areas. By being right up against the glaciers the were shielded fro the north winds, and the face of the glacier reflected sunlight back into the ground. The area near the glacier was much warmer than the surrounding tundra. It was well watered with melt water, and the soil was rich in minerals from the glacial till, and as loose as a well tended garden. Plants that are now exclusively tropical were better adapted to cold and variable day length.

Soooo, a mammoth feeds in the richest local environment, right up next to the glacier, and suddenly there's an avalanche instantly pounding the mammoth into the dirt and packing it in ice...

[RightWhale]

The movie is nonsense, scientists told BBC News Online, except that the Earth's magnetic field is generated by activity deep inside it.

That is a hypothesis. It was put forth by a single scientist 100 years ago and has been accepted as a given without question ever since.

Look at some fact:
Mars lost its atmosphere, Mars has no mag field;
the moon has no atmosphere, the moon has no mag field;
Venus's atmosphere is not rotating, Venus has no mag field;
the sun has an extensive rotating atmosphere, the sun has a huge mag field;
Jupiter has a huge rotating atmosphere, Jupiter has a huge mag field;
earth has some atmosphere, rotating, earth has some mag field.

Mars has a rotating iron core but no mag field. The sun and Jupiter have no iron core, but guess what.

Therefore, the iron magnet hypothesis was only a guess, and there is no reason to accept it as reality. Look at the atmosphere. Look at the sun with its recent sunspots and mag storms. Don't look directly at the sun without proper eye protection--have to say that because there are litigous morons about.

[TASMANIANRED]

You can't bury your magnets without an Environmental impact statement.

If you bury them in the wrong spot the earth may start rotating in the opposite direction and the tornadoes in the bathtub drain as the water goes down will start moving counter clockwise. Tornadoes in the midwest will stop moving east and start moving towards California.

The notion that California may break off and sink into the ocean with the big one will be reversed and we may be stuck with the flakes, nuts and Mexifornians forever.

Plus the wolly Mammoths will unthaw ,go on a stomping and goring spree. Since they are really an endangered species no one will be allowed to re-exterminate them .

We will be faced with the bleak prospect of throwing them bodies of environmentalists to tire them down before capturing them and sending them to a Pacific Island to live out the rest of their natural days in idylic peace and harmony with the saber tooth tigers.

[inquest]

Mars has a rotating iron core but no mag field.

This is the first I've heard of this. Apparently it doesn't have much of an active core, or there'd be plate tectonics. Is it just a solid core, or is there liquid churning as well?

[RightWhale]

Mars is smaller than earth, so the dynamics would be less. There is talk of restoring Mars's mag field so there would be a shield against solar storms, but this is associated with restoring Mars's atmosphere somehow. Why don't we put 2 and 2 together?

[balrog666]

You're funny.

Your first link doesn't seem to work and your second link is a book review of a fictional work.

Do you have any real data of your bizarre hypothesis or are you just a joker?