What Is a Magnetic Field?
Magnets are fascinating things. They can be very useful in a wide range of practical applications, while they are also a lot of fun simply as toys. They are used in heavy industry, and they are also used in some of the most advanced scientific experiments mankind has ever taken part in.
What actually makes magnets and magnetic fields work is a difficult question to answer. To get close to the answers we need to dig deep into the world of quantum mechanics. We do have a reasonable understanding of them, however, and this is what we have learned so far about them.
