In 1831, Michael Faraday wrapped two wires around opposite sides of an iron doughnut and found that if he passed a current through one, it immediately induced a current in the other. Faraday’s law of ...

This theoretical finding could have broad implications for such applications as magnetic levitation trains, which ride inches above the surface without touching it and are propelled by magnets ...

An interface between media with different helicities (red and blue curly arrows) supports zero-helicity linearly polarized surface modes (green arrow). (Credit: Konstantin Bliokh) Maxwell’s ...