This post is the sixth in a series called “500 Words To Save The World.” Each day I will use just 500 words to address a problem that has been bugging you or me. If you want to get in on the conversation, tell me the problem you’d like discussed in the comments section of this post, or email me directly at email@example.com. You may start counting words… now!
Years ago I received a Lego set for Christmas. I wrote about it in a piece called Why Legos Matter. This set included gears and axles. One day my Dad and I were playing with the Legos, and he taught me how to make a speed multiplier gearbox. When you mesh small and large gears in an alternating pattern, turning the input end produces a substantially greater rotation at the output end. It seemed like magic… I set out to build a bigger one using all the gears in the set. […]