This wonderful piece of gearing has appeared on HowStuffWorks just before. Chances are you'll recognize it from the electrical screwdriver short article. An automatic transmission contains two complete planetary gearsets folded collectively into a single ingredient. See How Gear Ratios Get the job done for an introduction to planetary gearsets. https://sethzhkml.blog4youth.com/34779237/gearbox-auto-fundamentals-explained