Gears

Gears are an essential part of virtually every mechanical device. We see gears in almost everything that has moving or spinning parts. Basically, gears are wheels with teeth cut into the circumference so they can turn each other without slippage. Essentially, gears operate under the same principal as levers. The teeth on gears act as spinning levers that push each other to produce relative motion. Gears are generally used for one of for main reasons: …

…rease in power, allowing a car to easily overcome inertia and begin moving. As speed increases and inertia is overcome, gear ratios are increased allowing the car to move at higher speeds. Gears are the essential workings of many machines such as microwaves, CD players, even watches. Without gears many modern machines would not exist. The gear, a very simple machine in itself, is one of the most important and necessary components of modern technology.