Cyberchase: Fixing The Train
The CyberSquad needs to fix the train in order to get up the mountain. They manage to get it moving by putting in a missing gear; however, it travels too slowly. They note that gears of different sizes turn at different speeds and that a gear with a high number of teeth will make the train move fast when paired with a gear with few teeth. They swap out a couple of gears and get the train moving at a fast rate.