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• n  a mechanism for transmitting motion for some specific purpose (as the steering gear of a vehicle)

• gear

News & Articles

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• This mind-bending machine completes one turn every 2.3 trillion years
  This machine by Arthur Ganson just blew my mind: its engine runs at 200 revolutions per minute but the last gear of its 12-gear mechanism is locked to a block of concrete. It looks still but, in reality, it is moving. You just can't see it because it completes one revolution every two trillion years. How the hell is this possible? Read more...        
  Nov. 3, 2013 - Gizmodo