THREE:In arranging the details of machines, it is impossible to have a special standard of dimensions for each case, or even for each shop; the dimensions employed are therefore made to conform to some general standard, which by custom becomes known and familiar to workmen and to a country, or as we may now say to all countries.
THREE:Machines may be defined in general terms as agents for converting, transmitting, and applying power, or motion and force, which constitute power. By machinery the natural forces are utilised, and directed to the performance of operations where human strength is insufficient, when natural force is cheaper, and when the rate of movement exceeds what the hands can perform. The term "agent" applied to machines conveys a true idea of their nature and functions."V. Henault.
THREE:A remarkable circumstance connected with the evidence afforded by the figured monuments is its progressive cha239racter. According to M. Ravaisson, As time goes on, the indications of belief in a future life, instead of becoming fainter, grow clearer and more distinct. More and more exalted ideas are formed of the souls destiny, and ever increasing honours are paid to the dead. Moreover, these ideas and practices are extended so as to cover a greater number of individuals. At first it would seem that the only persons whose fate excites any interest are kings and heroes, the children or the descendants of the gods; in the course of time many others, and at last all, or nearly all, are admitted to a share in the same regard. The ancient principle that happiness is reserved for those who resemble the gods remains unchanged; but the notion of what constitutes resemblance to the gods, or in other words perfection, gradually becomes so modified, that all men may aspire to reach it.370
TWO:And Jeff, chewing his gum casually, justified their confidence.