Physicists have long been drawn to the nonlinear Hall effect: a subtle variant of the classical Hall effect, in which an electric voltage appears perpendicular to a current flowing through a material.

To anyone who hasn’t seen it demonstrated, 3-D printing sounds futuristic—like the meals that materialized in the Jetsons’ oven at the touch of a keypad. But the technology is quite straightforward: ...

Economic analysis can shine a revealing light on the causes and consequences of social unrest The past decade was marked by a series of high-profile social protests—the Arab Spring, Black Lives Matter ...