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 ...
On Earth, the magnetic field of our planet points a compass north, but in space, things are a bit more complicated.
Scientists tracking Earth's magnetic pole have recently spotted it heading toward Siberia. Where it will end up, no one knows ...
The needle will turn and then come to a complete stop. It will be facing magnetic north. You can check this by placing the compass next to the bowl. The needle is being affected by the Earth’s ...