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Planetary magnetism
M a g n e t i c f i e l d s a r e u b i q u i t o u s i n t h e U n i v e r s e b e c a u s e o f t h e a b s e n c e (o r r a r i t y ) o f f r e e m a g n e t i c m o n o p o l e s . However , t h e l a r g e s c a l e c o n c e n t r a t i o n of m a g n e t i c f l u x i n an e s s e n t i a l l y n o n f e r r o m a g n e t i c body s u c h a s t h e E a r t h , r e q u i r e s a n o n c o...
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ژورنال
عنوان ژورنال: Nature
سال: 1872
ISSN: 0028-0836,1476-4687
DOI: 10.1038/005363a0