Mari defies her mother and travels back in time once again. Meanwhile, trouble is brewing back at Hayase's lab.
Depending on their wavelength, 
electromagnetic waves
Según el largo de su onda,
las ondas electromagnéticas
OS TIPOS DE ONDAS ELETROMAGNÉTICAS
ONDAS DE RÁDIO - LUZ - RAIOS X/RAIOS GAMA
Dependendo do comprimento de onda,
as ondas eletromagnéticas