This awesome bit of gearing has appeared on HowStuffWorks prior to. It's possible you'll identify it from the electric screwdriver write-up. An automatic transmission has two total planetary gearsets folded together into a single part. See How Gear Ratios Get the job done for an introduction to planetary gearsets. These https://paxtonzfffc.blogprodesign.com/55488813/a-secret-weapon-for-gearbox-auto