Some kinds of nails, such as those used for defending the soles of coarse shoes, called hobnails, require a particular form of the head, which is made by the stroke of a die.
Charles BabbageThe half minute which we daily devote to the winding-up of our watches is an exertion of labour almost insensible; yet, by the aid of a few wheels, its effect is spread over the whole twenty-four hours.
Charles BabbageAnother mode of accumulating power arises from lifting a weight and then allowing it to fall.
Charles Babbage