The polarization pattern is perpendicular to the magnetic field lines. “By imaging polarized light from hot glowing gas near black holes, we are directly inferring the structure and strength of ...

The force is always greatest when the direction of the current is 90° to the direction of the magnetic field. The direction of the force is always at 90° or perpendicular to both the direction ...

A magnetic field is just an electric field seen from ... resulting in a force perpendicular to a two-dimensional plane. (The effect was first discovered in three dimensions in 1959.) ...