I’ve always been fascinated by mechanical gears. There is something captivating about the way their teeth come together to create a fluid, unified motion.

In this blog post I’d like to look at these simple machines up close. I’ll explain how gears affect the properties of rotational motion and how the shape of their teeth is way more sophisticated than it may initially seem. Movement is important in this article so most of the visualizations are animated – you can play and pause them by clicking on the button in their bottom left corner.


Awesome explanation about Gears. I am a big fan of Bartosz Ciechanowski work, his explanations are clear and have cool interactive examples.