Earth is surrounded by a magnetic field generated by electric currents from within the planet. Compasses take advantage of this field to identify north and serve as a navigational aid. But one social ...
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How does a compass find true direction?

This video explains how compasses use Earth’s magnetic field to point north, breaking down the science behind one of humanity’s oldest and most reliable navigation tools.
Bats use a magnetic compass to navigate over long distances and locate their home roosts, according to a groundbreaking report by University biologists that opens new avenues for research into how ...