This wonderful piece of gearing has appeared on HowStuffWorks prior to. You might understand it from the electrical screwdriver short article. An automatic transmission is made up of two full planetary gearsets folded with each other into one ingredient. See How Gear Ratios Get the job done for an introduction https://gearboxauto74184.liberty-blog.com/34271963/the-fact-about-gearbox-auto-that-no-one-is-suggesting