IT is well known that the sudden development of a current in a conductor is opposed by an influence analogous to the inertia of ordinary matter. A powerful movement of electricity cannot be suddenly ...

Insistent demand for energy-saving industrial and home appliances has recently escalated because of energy and environmental matter and the necessity to comply with new energy consumption regulations.

Stick your hand into a powerful electric induction coil. Nothing happens. Then stick a steel rod into it—the metal becomes red hot almost at once. This phenomenon is the basis of the fast-growing ...