stackyFACTSWhen you need ridiculous rotational strength in a tiny confined space, you use a planetary gearset. A central sun gear violently forces multiple smaller planetary gears to roll wildly around the inside of a massive outer ring, multiplying sheer twisting force without requiring any awkwardly large outer housings.
Keep exploring facts in this topic.
Technology →STACKY FOR IPHONEKeep discovering with Stacky. Interesting facts in an app that is always within reach.
Steering a car relies on turning a flat circle into a straight shove. A rack and pinion setup meshes a normal circular gear directly into a completely flat,…
Discover more
Sometimes you need a machine to move, stop, and move again without turning off the motor. The Geneva mechanism uses a rotating pin that slides in and out of a…
Discover more
Straight-cut gears violently slam into each other constantly, causing incredibly loud mechanical whining. Helical gears fix this chaos by severely slanting…
Discover more
Normal springs get exponentially harder to pull the further you stretch them. Constant-force springs, found inside tape measures, are just tight coils of flat…
Discover more
A worm gear consists of a threaded screw turning a regular toothed wheel. It’s an incredibly stubborn mechanism. While the screw can easily turn the gear, the…
Discover more
Vibrating alert on your smartphone was originally developed for military mechanics and airplane pilots in the 1960s to warn them of incoming hazards in…
Discover more