"Now all oscillatory movements of such an electron can be conceived of as being split up into force, and two circular oscillations perpendicular to this direction rotating in opposite directions"

This quote by Pieter Zeeman is describing the oscillatory motions of an electron. He is recommending that these motions can be broken down into 3 parts: a force and 2 circular oscillations. The force is the main instructions of the electron's motion, while the 2 circular oscillations are perpendicular to the force and turn in opposite instructions. This concept is very important in understanding the habits of electrons, as it assists to explain how they move and connect with other particles. It likewise assists to explain the behavior of light, as light is composed of particles that act in a comparable manner. By comprehending the oscillatory motions of an electron, researchers can gain a much better understanding of the habits of light and other particles.