Firepower, however, is much more effective and versatile if it can bemoved quickly across the battlefield so that it can delivered its destructivepower at the time and place the commander needs it most. Hence, the artillerypiece was mounted on the treads, giving the tank the element of mobility.In the human body itself, it finds its origins in the running power ofthe legs, a power that has been augmented and replaced by the domesticationof the horse and the invention of the wheel. The further enhancement throughthe addition of the combustion engine and the tread give the cyborg ofthe tank a mobility that has long outstripped the human capacity for running.

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