This amazing piece of gearing has appeared on HowStuffWorks in advance of. You could figure out it from the electric screwdriver write-up. An automatic transmission has two total planetary gearsets folded alongside one another into a single ingredient. See How Gear Ratios Do the job for an introduction to planetary https://edgarsxyxv.fitnell.com/74928282/rumored-buzz-on-gearbox-auto