WE are glad to welcome a really admirable attempt to place before students the modern doctrines concerning electricity and magnetism in a popular but reasonably accurate form. The book begins with a ...

A magnet is a metal that can attract (pull) or repel (push) other types of metals. Every magnet is a metal, but not all metals are magnets. The force of magnets is called magnetism. Magnetism can work ...

THIS well-known book has become almost a classic for those beginning the study of electricity and magnetism. It is an encyclopædia of information on all things electrical. A new edition of a volume ...