Primarily, the compass was used for geomancy for a long time before it was used for navigation Ancient Chinese alchemists realized that the magnetite ore would point towards a magnetic north. Their ...

This ancient field likely even connected with Earth’s, according to NASA, creating a protective magnetosphere that shielded both bodies from solar wind and geomagnetic storms. But today, without a ...

The fact that the grains of ancient rocks are lined up like tiny compass needles has led to the astonishing conclusion that the earth's magnetic poles have wandered and reversed By S. K. Runcorn ...