This means that their magnetism is there all the time and cannot be turned on or off as it can with an electromagnet. Converting a magnet to a non-magnet is called demagnetisation. Magnets are made ...
How can you produce a magnet with exactly the right magnetic field? A research team now has a solution: for the first time, they have created magnets with a 3D printer. Today, manufacturing strong ...
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 of ...
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