This awesome piece of gearing has appeared on HowStuffWorks just before. You could possibly recognize it from the electric screwdriver write-up. An automatic transmission consists of two finish planetary gearsets folded together into one particular component. See How Gear Ratios Get the job done for an introduction to planetary gearsets. https://codysvvtp.smblogsites.com/34161449/gearbox-auto-can-be-fun-for-anyone