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This might sound silly but...If you produce a magnetic field of large magnitude, does it locally distort the Earth's magnetic field? I figured that it might, but I didn't know how to go about analyzing it.
mgb_phys said:and 2, you get pretty northern lights in the north ( and presumably the south?
gravity guru said:i"m new at the forum, but already i fell like i"m being tossed to the lions every time i ask a question. not so much here as other places on PF. but as Albert said " i"m passionately curious " so i"ll press on. does anyone know weather a magnetosphere is made up of individual magnetic lines or layers of magnetism like the layers of an onion or maybe fins? i really would like to know. thank you, gravity guru.
gravity guru said:does anyone know weather a magnetosphere is made up of individual magnetic lines or layers of magnetism like the layers of an onion or maybe fins?
billiards said:Here's a good one for boffins here to mull over:
In the film The Core some idiots drilled into the Earth's core and set off some nuclear explosions to try to stop the Earth's magnetic field from reversing. But imagine that the Earth's magnetic field really was reversing ... what would be the best way to prevent the impending doom, how would you stop the reversal?
As a matter of interest I can tell you what a geophysics lecturer told me on the subject of preventing a magnetic field reversal ... Apparently, if we set up a large chain of exercise bikes around the equator and used them to generate a current, this would stop the field from reversing ... How this works exactly I must admit I do not know ...Carlos4558 said:Re-introduce lead baised paint :p
gravity guru said:destari, ulysees and carlos, thank you for replying. i don"t mean to be cryptic but this time of year i begain to get busy , because of storm season, so it takes up most of my time but i"ll try to be somewhat clearer. i need to say,at frist, that i was taught that a charge must move before a magnetic field could be formed and with that in mind i looked at the Earth and thought it should apply here as well. meaning that the earth"s magnetic field lags behind the rotation of the Earth and also rotates at a slower speed . it takes several weeks for the lagging manetic field to travel from the cape verde islands to the west indies, this is based on the time it takes storms to travel that distance. anyway, time delay would produce relative motion at some rate. and the field would act like a charge vaccum, cleaning up and building up as it goes. this to me made sense. gavity guru.
billiards said:there are external influences, such as magnetic storms (which have nothing to do with storms in the meteorological sense),
The Earth's magnetic field is created by the movement of liquid iron in its outer core. This movement, called convection, generates electrical currents that produce the magnetic field.
The Earth's magnetic field acts as a shield, deflecting harmful charged particles from the sun and other sources away from the planet. It also helps to protect our atmosphere from being stripped away by these particles.
No, the Earth's magnetic field is not constant. It is constantly changing in strength and direction, and has even reversed completely in the past. These changes are caused by the movement of the liquid iron in the Earth's core.
Many animals, particularly birds and sea turtles, use the Earth's magnetic field for navigation during migration. It is believed that they have tiny particles of magnetite in their bodies that help them sense the magnetic field and orient themselves.
If the Earth's magnetic field were to disappear, the planet would be exposed to a higher amount of solar and cosmic radiation, which could have harmful effects on living organisms. It could also lead to disruptions in our technology and communication systems, as these are dependent on the magnetic field for protection.