Learn how Lego Technic gear ratios work in this detailed explanation ... ExxonMobil CEO says not so fast. Smartest Dog Breeds, Ranked Trump to Nominate Fox News Host Hegseth as Defense Secretary ...

See how a Lego car is tested on different obstacles and improved to climb better. Changes like bigger wheels, stronger grip, 4WD, better balance, and the right gear ratio help it tackle every ...