In contrast to the mechanical picture, in the electrodynamic picture, matter was considered not only as matter, but also as a physical field. This means that the movement of matter is carried out not only in the form of movement of bodies or particles, but also in the form of propagation of electromagnetic waves.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.