Electromagnetic Radiation (AKA Light / Radiation) is a type of [[Wave]] composed of [[Wave|paired oscillations]] in the [[Electric Field|Electric]] and [[Magnetic Field|Magnetic]] [[Vector Field|Field]]. These propogations travel through space at the [[Speed of Light]] $c \approx 300,000,000 \pu{ ms^{-1}}$. $\huge E = \hbar f $