Magnetic declination - Earth's magnetism | Magnetism & matter | Physics | Khan Academy
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- Опубліковано 28 сер 2024
- Magnetic declination at a point on earth is the angle between the earth's geographic & magnetic meridian at that point. Meridians can be thought of great circles that pass through a point on earth and either the geographic or the magnetic poles.
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Created by Mahesh Shenoy
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I can't thanks u enough, sir. I've been facing too much problems about magnetic declination. But now it is completely clear, though it is tough for me to learn physics in English ( 'coz all of my books in Bengali & I'm not expert in English )...
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This actually made the concept of meridian and angle of declination crystal clear. I was struggling to visualise it until I landed upon this video. Thank you!
With that magnetic pole moving at 30 miles a year now its should make you question and understand the narrative of man-made global warming. Its the planet,, not man.. Im open for ideas on that statement.. I like this video. Interesting stuff.
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It's the molten magma inside the earth's core and mantle that is responsible for the earth's magnetic field coupled with the earth's rotation. That also explains the shifting of the magnetic pole because of the movement of the molten magma.
So basically the iron core is a dyanamo
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