FORE:It will be well for an apprentice to begin at once, as soon as he commences a shop course, to note the manner of handling material, watching the operation of cranes, hoists, trucks, tackle, rollers; in short, everything that has to do with moving and handling. The machinery and appliances in ordinary use are simple enough in a mechanical sense, but the principles of handling material are by no means as plain or easy to understand. The diversity of practice seen in various plans of handling and lifting weights fully attests the last proposition, and it is questionable whether there is any other branch of mechanical engineering that is treated less in a scientific way than machinery of this class. I do not allude to the mechanism of cranes and other devices, which are usually well proportioned and generally well arranged, but to the adaptation of such machinery with reference to special or local conditions. There are certain inherent difficulties that have to be encountered in the construction and operation of machinery, for lifting and handling, that are peculiar to it as a class; among these difficulties is the transmission of power to movable mechanism, the intermittent and irregular application of power, severe strains, also the liability to accidents and breakage from such machinery being controlled by the judgment of attendants.Such a thinker was Xenophanes, of Colophon. Driven, like Pythagoras, from his native city by civil discords, he spent the greater part of an unusually protracted life wandering through the Greek colonies of Sicily and Southern Italy, and reciting his own verses, not always, as it would appear, to a very attentive audience. Elea, an Italiote city, seems to have been his favourite resort, and the school of philosophy which he founded there has immortalised the name of this otherwise obscure Phocaean settlement. Enough remains of his verses to show with what terrible strength of sarcasm he assailed the popular religion of Hellas. Homer and Hesiod, he exclaims, have attributed to the gods everything that is a shame and reproach among mentheft, adultery, and mutual deception.12 Nor is Xenophanes content with attacking15 these unedifying stories, he strikes at the anthropomorphic conceptions which lay at their root. Mortals think that the gods have senses, and a voice and a body like their own. The negroes fancy that their deities are black-skinned and snub-nosed, the Thracians give theirs fair hair and blue eyes; if horses or lions had hands and could paint, they too would make gods in their own image.13 It was, he declared, as impious to believe in the birth of a god as to believe in the possibility of his death. The current polytheism was equally false. There is one Supreme God among gods and men, unlike mortals both in mind and body.14 There can be only one God, for God is Omnipotent, so that there must be none to dispute his will. He must also be perfectly homogeneous, shaped like a sphere, seeing, hearing, and thinking with every part alike, never moving from place to place, but governing all things by an effortless exercise of thought. Had such daring heresies been promulgated in democratic Athens, their author would probably have soon found himself and his works handed over to the tender mercies of the Eleven. Happily at Elea, and in most other Greek states, the gods were left to take care of themselves.
Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Vestibulum tortor quam, feugiat vitae.
