This awesome bit of gearing has appeared on HowStuffWorks before. You could possibly identify it from the electric screwdriver short article. An automatic transmission includes two full planetary gearsets folded together into one component. See How Gear Ratios Get the job done for an introduction to planetary gearsets. This can https://juliusadcaw.thelateblog.com/34644067/a-secret-weapon-for-gearbox-auto