One way is to determine the magnetic dipole moment of the magnet ... Actually, that is the magnitude of the field along a perpendicular axis to the dipole - but you get the idea.

One component of the field, the stronger part, is the north-south pointing "axial dipole" magnetic field ... not positioned along the north-south axis. The researchers suggest this weak field ...

Thus, a magnetic dipole - such as a bar magnet - has north ... we slide the second magnet back and forth (along the x-axis) at the correct frequency, we give the maximum “kick” to the needle ...

(Courtesy: R Bjørk) Magnetic levitation is already employed in systems such ... on a motor with its north and south poles oriented perpendicular to its rotation axis and made to rotate at velocities ...

each bead acquires a dipole—a pair of negative and positive charges like a north-south axis. In response to a rotating ...