The earth's magnetic discipline triggers a compass needle to orient within a North-South course and it is utilized by birds and fish for navigation. Inquiries and solutions Exactly what are electromagnetic fields and in which do they come from? Electrical fields are created by variations in voltage: the higher the https://prolotherapydoctorsnearme66554.blogadvize.com/42470670/helping-the-others-realize-the-advantages-of-prolotherapy-doctors-near-me