The next time you long for the romance of the northern lights, switch on a fluorescent lamp! There may be less mystique, but the principle will be the same.
Ever heard of motional induction? Learn about it on this Moment of Science.
People who were itching for the debut of the euro might have gotten more than they hoped for.
Once the electric circuit is completed, an electric current begins to run though a cylindrical coil of wire, or solenoid. The electric current creates an electromagnetic field around the solenoid.