This awesome bit of gearing has appeared on HowStuffWorks prior to. You could possibly realize it from the electrical screwdriver post. An automatic transmission incorporates two comprehensive planetary gearsets folded with each other into one part. See How Equipment Ratios Get the job done for an introduction to planetary gearsets. https://charlieseikk.bloggazzo.com/33213086/top-latest-five-gearbox-auto-urban-news