Complex sentence: Einstein alters the coordinate system (equ 10-13) of Maxwell's equations (equ 7-9) to justify Maxwell's electromagnetic theory of light but Maxwell's equations are derived using Ampere and Faraday induction effects that are not optical.
Split into simpler sentences: Einstein alters the coordinate system (equ 10-13) of Maxwell's equations (equ 7-9) to justify Maxwell's electromagnetic theory of light. Einstein's transformation of Maxwell's equations does not change the fact that Maxwell's equations are derived using Ampere and Faraday induction laws that are not optical.