Complex sentence: In 1873, Maxwell describes an electromagnetic ether but the Ampere-Faraday massless electromagnetic field conflicts with Huygens-Fresnel ether that is composed of matter and Maxwell's electromagnetic theory of light is based on Ampere and Faraday induction experiments that are not optical.
Split into simpler sentences: In 1873, Maxwell describes an electromagnetic ether but the Ampere-Faraday massless electromagnetic field conflicts with Huygens-Fresnel ether that is composed of matter. In addition, Maxwell's electromagnetic theory of light is based on Ampere and Faraday induction experiments that are not optical.