All Questions
Tagged with earth magnetic-fields
71
questions
4
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answer
531
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Does the Earth's magnetic field sort cosmic rays by charge?
The Earth is struck by both negative and positively charged particles. As these particles interact with the Earth's magnetic field they become deflected. Do the magnetic poles of the Earth receive ...
- 6,015
9
votes
2
answers
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Earth's magnetic field shields us... from what threat?
This is a nice artistic picture of the magnet field of the earth, shielding us from the solar wind. (source)
Wherever you look, it is stated that without our shield, life would not be possible on ...
- 298
3
votes
1
answer
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What happens when a compass is taken to the site of magnetic pole of earth?
We know that the direction of compass needle always points towards the magnetic north pole.
If we take the compass to the site of magnetic north pole, which direction will the compass needle point?
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0
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Earth's magnetic effect on my magnet
My magnet seems to work independently of, and unaffected by, the Earth's magnetic field, yet the magnetic field of my magnet changes as I introduce some other similar magnets of varied sizes into its ...
- 145
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2
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If earth's magnetic field disappeared, would cosmic radiation lead to increased radioactivity?
This is about the effect of cosmic radiation on earth. Is it the type of radiation that could make things radioactive?
So if earth's magnetic field weakened considerably (such as could happen if it ...
user65435
0
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0
answers
37
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Direction of CMB and magnetic fields?
Measurements show the CMB is warmer to the North.
Could more photons coming from that direction of the sky, cause metals in the Earth to move in that particular direction?
As the Earth orbits the ...
- 821
4
votes
3
answers
14k
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Why does Earth behave like Natural Bar Magnet?
What is the reason for the Earth to behave like a bar magnet and have poles (North and South poles)?
- 659
13
votes
1
answer
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How much power would be needed to make a substitute for natural Earth magnetic field?
Imagine the Earth's magnetic field will take a "maintenance pause" for 1000 years and there is a giant 10-year "doomsday countdown timer" ticking in the sky. The magnetic field will be just normal for ...
- 239
38
votes
4
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Why is Earth's climate so stable?
Earth wasn't always the only water-world in the solar system. Mars also appear to have started out wet
but, as conditions changed, Mars lost its oceans.
So, how has Earth managed to avoid a similar ...
- 1,139
1
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0
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42
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If earth generates magnetic field does it attract metal? [duplicate]
If earth generates magnetic field does it attract metal objects at the surface of the planet and make them heavier?
- 41
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votes
2
answers
4k
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Does the geomagnetic field rotate?
The Earth rotates about it's own axis. Do the geomagnetic field lines rotate due to this rotation or not?
- 347
6
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1
answer
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What is the effect of Earth’s magnetic field on airplanes?
As an airplane accelerates through the earth’s magnetic field, it experiences a changing flux $d\phi \over dt$ and a potential difference is induced along its wings.
Given that the wings are made of ...
- 1,546
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1
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546
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Earth's magnetic field
I'm dealing with a problem here. Today my professor asked us a question :
How should a metallic wire move in Earth's magnetic field such that she gets maximum potential difference in it's ends:
a) ...
- 145
6
votes
1
answer
2k
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How is Earth a magnet while it's volume is mostly above Curie temperature?
I was assuming the earth's magnetism is similar to a permanent magnet; But below a depth of somewhere near the Mohorovičić discontinuity (Moho) between earth's crust and mantle it should be above ...
- 3,901
7
votes
1
answer
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Why is the geomagnetic north pole at a different location from the magnetic north pole?
According to this site
Magnetic North, Geomagnetic and Magnetic Poles
The Geomagnetic poles (dipole poles) are the intersections of the Earth's surface and the axis of a bar magnet hypothetically ...
- 171