When an electric current passes through a metal wire, a magnetic field forms around that wire (see diagram at right). Likewise, a wire passing through a magnetic field creates an electric current ...

Magnetic pole shifts, a subject shrouded in both fascination and fear, refer to the movement of Earth's magnetic north and south poles. Unlike the geographic poles, which are fixed, magnetic poles ...

Recent observations reveal that Earth's magnetic poles are gradually drifting. Until the 1990s, the North Pole moved at about 15 kilometers per year. However, the rate has accelerated to 55 ...