A magnetic field is invisible, but it can be detected using a magnetic compass. A compass contains a small bar magnet on a pivot so that it can rotate. The compass needle points in the direction ...

Scientists have long considered the potential of harvesting the Earth’s magnetic field for energy and extensive research has been conducted into its influence. One theory proposes that the process of ...

Eurasian reed warblers (Acrocephalus scirpaceus) appear to calculate their geographical position by drawing data from different distances and angles between magnetic fields and the Earth’s shape.