This is a non-contact force. The area around the magnet that is affected by this force is called a magnetic field. These tiny bits of iron make the invisible visible. The metal pieces follow the ...

A permanent magnet is always magnetic. It has an invisible magnetic field. Only certain materials, such as iron, feel a magnetic force. Permanent magnets can come in lots of different shapes and ...

Learning how magnets and magnetic fields work is one thing, but actually being able to measure and see a magnetic field is another thing entirely! [Stanley’s] latest project uses a ...