How Automatic Transmissions Work - The automatic transmission in a car is an amazing mechanical system. It does everything a manual transmission does, but it does it with one set of gears. Learn how the whole setup works!
How Bearings Work - Bearings are the invisible heroes inside many mechanical devices. Learn about all different kinds of bearings, including 5-foot ball bearings that keep buildings on solid footing!
How Clutches Work - Any car with a manual transmission has a clutch that connects/disconnects the engine and transmission. Learn how a normal automotive clutch works and explore a variety of other clutches!
How Differentials Work - The differential is what lets a car make turns without slipping all over the place. Find out how this essential component allows the wheels to rotate at different speeds.
How Four-wheel Drive Works - 4X4s can be fun to drive, not to mention useful in rough weather or terrain. Find out how four-wheel-drive systems keep cars on solid footing!
How Gear Ratios Work - You see gears in just about anything that has spinning parts -- car engines, transmissions, VCRs... Learn what these gears are doing and get to the bottom of the "gear ratio" concept!
How Gears Work - Gears are a fundamental part of just about any mechanical object -- if it has a motor, engine or spring, it probably has gears! Learn dozens of fascinating facts about gears!
How Manual Transmissions Work - What is really happening inside the transmission as you move the shifter through that funny "H" pattern?
How Torque Converters Work - Torque converters are an essential part of any automatic-transmission car. Learn how torque converters work and see what's going on inside!