👉 In physics, geomagnetism refers to the interaction between the Earth's magnetic field and the particles that make up its atmosphere. This interaction is a crucial part of our understanding of how the Earth operates on a large scale, from the movement of tectonic plates to the weather patterns in different parts of the world. The term "geomagnetics" comes from the Greek word "geométrie," which means "measurement." In physics, geomagnetism is often studied using the principles of
