A gear is a rotating machine part having cut teeth, or cogs, which mesh with another toothed part in order to transmit torque. Two or more gears working in tandem are called a transmission and can produce a mechanical advantage through a gear ratio and thus may be considered a simple machine. Geared devices can change the speed, torque, and direction of a power source. The most common situation is for a gear to mesh with another gear, however a gear can also mesh a non-rotating toothed part, called a rack, thereby producing translation instead of rotation.
The gears in a transmission are analogous to the wheels in a pulley. An advantage of gears is that the teeth of a gear prevent slipping.
When two gears of unequal number of teeth are combined a mechanical advantage is produced, with both the rotational speeds and the torques of the two gears differing in a simple relationship.
In transmissions which offer multiple gear ratios, such as bicycles and cars, the term gear, as in first gear, refers to a gear ratio rather than an actual physical gear. The term is used to describe similar devices even when gear ratio is continuous rather than discrete, or when the device does not actually contain any gears, as in a continuously variable transmission.
Plot
Gear looks at the coolest boy toys on the planet. Each episode finds host, Cameron Smith, traveling the country to play with toys that both the indoor technophile and the outdoors adventurer craves. Gear is the definitive destination for the man who literally wants to play all day.
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Plot
The story re-imagines the real-life "console wars" as a fantasy tale - the Segua Kingdom is locked in an age-old war with the Ninterudo Empire for dominance of the land of Consume. Segua now finds itself on the defensive, but an unlikely hero has risen in the form of Gear, a boy who brags about his breakneck speed. Gear helps turn the tide of the war.