Activity deep in Earth affects the global magnetic field
地球深处的活动影响了全球磁场
Compass readings that do not show the direction of true north and interference with the operations of satellites are a few of the problems caused by peculiarities of the Earth’s magnetic field. New research from geophysicists at the University of Leeds suggests that the way this super-hot core is cooled is key to understanding the causes of the peculiarities — or anomalies, as scientists call them — of the Earth’s magnetic field.
