Complex sentence: Hertz (1887) attempts to structurally unify light with induction using a spark gap but Hertz's spark gap emits electrons, when the spark is produced yet induction is not an ionization effect which is experimental proof light is not an electromagnetic phenomenon.
Split into simpler sentences: Hertz (1887) attempts to structurally unify light with induction using a spark gap experiment but Hertz's spark gap emits electrons, when the spark is produced, yet induction is not an ionization effect. The formation of light is an ionization effect yet induction is formed without the emission of electrons which is experimental proof light is not an electromagnetic phenomenon.