All Questions
Tagged with earth magnetic-fields
71
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Does the Earth's Magnetic Field Affect Sleeping Position? [closed]
Does the Earth's magnetic field affect the sleeping position of a person? For sleep experience with Nature sounds, check out this video: https://www.youtube.com/watch?v=5FzjrdiUr90
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2
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Can the Dzhanibekov Effect celestial bodies, like Earth’s crust and/or core causing the flipping of magnetic poles?
“The tennis racket theorem or intermediate axis theorem, is a kinetic phenomenon of classical mechanics which describes the movement of a rigid body with three distinct principal moments of inertia. ...
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Magnetic Field of Earth and Turbulence of plasma
We generally know that plasma turbulence creates magnetic field (here, I have assumed that it happens through the dynamo effect). it is also affected by magnetic fields. Is it possible that plasma ...
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2
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Would a compass on its side point at the ground?
From a point just north of the equator, A straight line to the Magnetic North would be through the earth. If a compass was turned on it's side, would the north pointing arrow point toward the ground ...
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Is Earth's magnetic moment vector oriented parallel or antiparallel to the sun's magnetic moment?
Just curious how these two magnets are spatially related to?
And in case there is no any special preferred particular orientation, what is anyway their spatial orientation relation (relative angles)? ...
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Earth magnetic field, WMM/IGRF
I am studying about World Magnetic Model (WMM) and International Geomagnetic Reference Field (IGRF) models. It is well known that, to a first approximation, earth magnetic field is a field of dipole. ...
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Does Earth's electromagnetic field rotate with Earth?
I find sources saying that Earth's magnetic field rotates with Earth, but there are few sources saying that the electromagnetic field rotates with Earth. I realize the question may have a complicated ...
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Ideas for levitation using Earth's magnetic field and mu-metal [closed]
I'm not sure the idea works or not. Please answer it and its reason.
As shown in Figure 1, when the ASTM A753 Alloy2 magnetic shielding alloy is exposed to an external magnetic field, the applied ...
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If the liquid internal parts of the Earth solidify, what will be the consequences?
Will the Earth's radius just decrease, the daytime decrease, and the magnetic field seize to exist?
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How can we feel Earth magnetic field if we are rotating with it?
I know Earth have molten iron core and we should feel a magnetic force if we are stationary while Earth is spinning. But I'm curious how it is we can feel north and south poles so distinctly while we ...
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Earth electromagnetic field
Nowadays an unlimited amount of information can be transferred around the planet using wireless methods.
Is that possible to transfer the information using natural electromagnetic field such as Earth ...
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How is lava ferrous oxides responding to Earth's magnetic field related to Curie temperature?
One of the evidences of Earth's magnetic field oscilations are different magnetic orientations of lava particles that pop up on the surface at several volcanic locations at several chronologic stages ...
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4
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Is it possible to use forces on a current carrying conductor due to Earth's Magnetic field to levitate?
When current is applied, a conductor within a magnetic field feel a force. This is the Lorentz Force. I was thinking if it is then possible to apply as much current on a conductor that it will start ...
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501
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Do magnetic things fall faster?
Assuming correct orientation, do magnetic things fall faster than non-magnetic ones because of the magnetic field of the Earth? Of course it is clear that if any, the effect is very very small, but ...
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Is Earth's North pole actualy a South pole?
As far as I am concerned, the compass is facing along the magnetic field lines on the Earth's surface which in turn points towards the North pole by its design. But for a magnet, the field lines go ...
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Will a neodymium magnet levitate on ice at Earth's North and South Pole?
Will a neodymium magnet levitate on ice at NP or SP? Asking just because these magnets are powerful and the Earth magnetism is fairly stronger at poles than at the Equator.
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Are the precession and nutation of Earth's core directly connected with precession and nutation of Earth's magnetic field if they are present?
If the magnetic field of Earth is generated in the core of the Earth can we deduce core's precession cycle by measuring the precession of Earth's magnetic field (not Earth as a material object) or the ...
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Problem on Angle of declination [closed]
There was a problem in my book that read- A magnet is pointing towards geographic north at a place where the horizontal component of the Earth's magnetic field is 40 microtesla. Magnetic dipole ...
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Does magnetic field exist throughout space?
My question is quite subjective and I could not find a suitable explanation to whether there is a magnetic field in space beyond earth .I read one of the article stating
Interstellar dust clouds have ...
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Magnetic field in a Tangent Galvanometer
I was reading about the tangent galvanometer online. I came across a youtube video : https://www.youtube.com/watch?v=wIuAnP9xfxw .
It said that the field produced by the circular coil of the ...
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Can Earth's Magnetic Field Be as Less as -85μT and as Much as +70.46μT?
What did create the question?
I was analyzing a data set where the researchers have used objective data. They have calculated earth's magnetic field through sensors and that research was conducted in ...
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Ocean warming by induced electric current for wandering magnetic poles?
In a post on the co-rotation of Earth and its magnetic field (Does the geomagnetic field rotate?), John Rennie raised the point that, if Earth's magnetic field were rotating about its dipole axis, it ...
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242
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Do we need to know Earth's magnetic field locally?
I'm a high school student and in our course we have elements of earth's magnetic field (dip and other stuff) that lets us know the value and direction of magnetic field at any point on the planet.
I ...
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Being the Earth modelized as a big magnet (or solenoid), which would be the field intensity of such a model inside the solenoid or magnet axis?
This question has arisen from the Carl Friedrich Gauss’ statement that the Earth could be modeled, concerning his calculations about the earth’s magnetic potential, as a big magnet, himself having ...
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Can magnets be arranged to interact with earths magnetic field to produce force?
Is it possible to arrange one or more magnets along with iron/ferric guides to interact with our planets magnetic field in such a way that a force is generated in one or more directions?
Would a ...
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Why does the Earth not lose its magnetism?
A magnet loses its magnetic properties when subjected to heat, the Earth's core is also hot but still it has magnetic properties, Why?
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Cutting of Magnetic Flux
My book reads :
If a player runs along north south direction, no magnetic field lines are cut.
So my question is that how is this possible because the vertical lines are still perpendicular to his ...
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768
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Shape of Earth's magnetic field
Why earth's magnetic field is compressed on day side and extended like tail on night side, like this
I know that it's due to solar wind but not how that compression and extension happens.
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Angle of declination and angle of dip
Question:
The plane of a dip circle is set in geographic meridian and the apparent dip is $\delta_1$. It is then set in a vertical plane perpendicular to the geographic meridian. The apparent dip ...
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What happens if Earth loses its magnetic field?
Earth's magnetic field is shifting at a high speed does this mean earth will lose its magnetic field and if it does are we in danger or if it doesn't what are consequences of the poles shifting
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Why Earth is like a magnetic dipole?
Earth’s magnetic field is mostly caused by electric currents in the liquid outer core, which is composed of conductive, molten iron. Loops of currents in the constantly moving, liquid iron create ...
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Why Earth’s magnetic field is reversing its direction every few million years? [duplicate]
Just now I was studying the Magnetism and Earth's magnetic field source. when I read that the earth's magnetic poles are not fixed and keep changing ( the north becomes south and the inverse) every ...
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What is the pull force of Earth's magnetic field per square metre on one of the magnetic poles?
I was wondering if anyone knows what is the strength of pull of Earth's magnetic field near magnetic poles. I found that the field strength is approximately 0.65 gauss, but was unable to convert this ...
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Why is Earth's magnetic field so stable?
This answer explains why the Earth has a magnetic field, this answer explains why the Earth's magnetic field flips.
However, neither seems to answer the question of why the Earth's magnetic field ...
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How many magnetic latitude degrees does 100 km correspond to?
I'm trying to make a notation (an ionospheric plasma bubble) on a diagram true to scale. I know the bubble is $100 \,\text{km}$ wide but the diagram has magnetic latitude and longitude for the axes.
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2
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Why would the North Magnetic Pole (dip pole) of the Earth be well-defined (uniquely determined)?
Strongly inspired by the current thread Are there necessarily always at least two points where the Earth's magnetic field is vertical?, this is the opposite question:
Is there necessarily always at ...
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Are there necessarily always at least two points where the Earth's magnetic field is vertical?
Seeing this statement in this answer
There are at least two spots on Earth where the magnetic field of the planet is not horizontal, but is vertical.
has got me thinking. I don't mean to quote it ...
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How many amperes are flowing in the Earth's core?
To my surprise I couldn't find any estimate on how many amperes of electrical current are flowing in total in the Earth's core to be able to create the magnetic field strength $5\cdot 10^{-5}$ T on it'...
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How would the Aurora light on Earth look like if there wasn't a magnetic field?
Here are some pictures of the aurora light.
The beautiful phenomenon of Aurora is a well-known one, seen in the northern (Aurora Borealis) and southern parts (Aurora Australis) of the globe. Here is ...
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Do force fields physically exist?
Or are they just a region of space where the forces are acting around its source, for example a magnet? But if they are just regions, and not physical objects, then how can the Earth's magnetic field ...
user134652
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Energy Budget: Is the Earth's magnetic field slowly decaying?
Earth's magnetic field is maintained by the dynamo effect, and I have no doubt that this effect could sustain Earth's magnetic field for a very long ("infinite") time.
It's my understanding that the ...
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differences of Aurora Borealis (North) vs. Aurora Australis (South)
I was wondering about the differences between the Northern vs. Southern lights: will one pole collect the positive charges, and the other the negatives? I know that the solar wind is composed mainly ...
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Why geologist do not consider molten iron in the magma to be the source of Earth's magnetic field?
This was a question that came in a exam. How come is this possible?
Actually, a question on the source of Earth's magnetic field was asked here on physics SE, which matches my opinion.
The ...
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Could Earth's magnetic field be used to lift electromagnets? [closed]
This but lifted by the Earth's magnetic field.
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Will my data drives be safe in an emp event? [closed]
If there was an emp event (maybe because the rotation of magnetism of the earth or an atomic bomb) would the data on my hard drives, ssd, dvd, mini dvi tapes and cassette tapes be safe?
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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 ...
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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 ...
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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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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 ...
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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 ...
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