Eternal Motor

Centripetal Force: “Center-Seeking” Force Centripetal force has always been one of my favorite all time forces. It's simple, easy to understand and quite intriguing. Centripetal force isn’t just for classroom examples—it’s everywhere. From planets orbiting stars to electrons circling atomic nuclei, this “center-seeking” force quietly governs motion, making circular paths possible. At the heart of anything that rotates in this world, from a motor to the Earth spinning around its star, lies the centripetal force. Simply put, centripetal force acts toward the center of rotation of anything that rotates. What is centripetal force exactly? The term centripetal comes from Latin and literally means “center-seeking.” It was first introduced by Isaac Newton in 1687 in his Principia to describe a force that constantly directs an object toward the center of a curved path. The word combines centrum (“center”) with petere (“to seek”), and it contrasts with centrifugal force, whi...

Introduction to Gyroscopes and Precession You might have seen gyroscopic precession on YouTube or elsewhere. You might have even seen some of my own Facebook reels or YouTube videos of these gyroscopic systems, but you may not completely understand how they work or what they are supposed to do. You might have a general idea, but it’s not that intuitive. But don’t worry—I will explain the basics in a way that you can easily understand. After that I will then explain a little bit of the more advanced stuff. In extremely simple terms, it’s essentially just a spinning wheel. And if you tilt the axis a little bit, it will move in a way that feels quite odd. Most people, physicists included, already know what gyros do, but when certain forces are applied in certain ways, you can make them do some pretty unexpected things… well, almost anything. For those who do not understand how gyros work, I will try to break it down the best way I know how. For those who are “in the know,” you c...