  Magnetic resonance plays an important role in today's science, engineering,
and medical diagnostics. Learning and teaching magnetic resonance is
challenging since it requires advanced knowledge of condensed matter physics
and quantum mechanics. Driven by the need to popularize this technologically
impactful phenomenon, we develop an inexpensive table-top demonstration
experiment. It unveils the magnetic resonance of a hand-held compass in the
magnetic fields of a permanent magnet. The setup provides an immediate
visualization of the underlying physical concepts and allows for their
translation to broad student audiences.
