Magnetism

"Using just a few equations, scientists can describe the motion of a ball flying through the air and the pull of a magnet, and forecast eclipses of the moon."https://www.livescience.com/47814-classical-mechanics.html?utm_source=1440-st&utm_medium=email&utm_campaign=view-content-pr&user_id=66c4c92f5d78644b3ac5d5b4