2. Drawings in true elevation or in section are based upon flat planes, and give dimensions parallel to the planes in which the views are taken.
ONE:It is never enough to know that any piece of work is commonly constructed in some particular manner, or that a proposition is generally accepted as being correct; a reason should be sought for. Nothing is learned, in the true sense, until the reasons for it are understood, and it is by no means sufficient to know from observation alone that belts are best for high speeds, that gearing is the best means of forming angles in transmitting power, or that gearing consumes more power, and that belts produce less jar and noise; the principles which lie at the bottom must be reached before it can be assumed that the matter is fairly understood.
TWO:The wounded civilians had been put up in the small schoolrooms. Some of them must soon die. Some had burns, but most of them were hit the previous night during the mad outbreak, the mad shooting of the drunken and riotous Germans. In another room a number of old women were crowded together, who had to fly but could not walk all the way to the Netherland frontier.This last sentence brings the matter into a tangible form, and indicates what the subject of gain should have to do with what an apprentice learns of machine construction. Success in an engineering enterprise may be temporarily achieved by illegitimate meanssuch as misrepresentation of the capacity and quality of what is produced, the use of cheap or improper material, or by copying the plans of others to avoid the expense of engineering servicebut in the end the permanent success of an engineering business must rest upon the knowledge and skill that is connected with it.
TWO:"And you want to get home," Balmayne cried. "Pardon me. I will go and see if they are ready for you."(1.) What limits the speed at which the reciprocating parts of machines may act?(2.) What is the nature of reciprocal motion produced by cranks?(3.) Can reciprocating movement be uniform in such [108] machines as power-hammers, saws, or pumps?(4.) What effect as to the rate of movement is produced by the elastic connections of a trip-hammer?
The religious tendency of Senecas philosophy appears rather in his psychology than in his metaphysics, in the stress which he lays on human immortality rather than in his discussions on creation and divine providence. His statements on this subject are not, indeed, very consistent, death being sometimes spoken of as the end of consciousness, and at other times, as the beginning of a new life, the birthday of eternity, to quote a phrase afterwards adopted by Christian preachers. Nor can we be absolutely certain that the promised eternity is not merely another way of expressing the souls absorption into and identification with the fiery element whence it was originally derived. This, however, is an ambiguity to be met with in other doctrines of a spiritual existence after death, nor is it entirely absent from the language even of Christian theologians. What deserves attention is that, whether the future life spoken of by Seneca be taken in a literal or in a figurative sense, it is equally intended to lead our thoughts away from the world of sensible experience to a more ideal order of things; and, to that extent, it falls in with the more general religious movement of the age. Whether Zeller is, for that reason, justified in speaking of him as a Platonising Stoic seems more questionable; for the Stoics always agreed with Plato in holding that the soul is distinct from and superior to the body, and that it is consubstantial with the animating principle of Nature. The same circumstances which were elsewhere leading to a revival of Platonism, equally tended to develope this side of Stoicism, but it seems needless to seek for a closer connexion between the two phenomena.376Good gracious golly! gasped Dick."A thousand maledictions on it!" he muttered. "Both back tires are punctured!"In Brussels the people seemed to be of a different opinion. German reports about successes obtained were simply not believed, and people persisted in their opinion that Antwerp would be invincible. The more reports of victories the Germans posted on the walls, the more excited people became, and205 palmed off upon each other all sorts of victories of the Allies.Prout admitted that such was the case.
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THREE:Then there was the voice of Balmayne in a key of mirth. The front door was opened, the call of a cab whistle thrilled down the street. It was almost as if there were two sets of people in the house, one family given over to the dark and gloomy, the other all comedy and smiles.152
THREE:"I think that but for the pluck and courage of a girl friend Maitrank would have gone to his account before now," Isidore said more seriously. "I must confess that I find the mystery of it all exceedingly fascinating. Maitrank is not the kind of man who forgets and forgives in a moment. What on earth could have induced him to grow so friendly with that fellow Balmayne all at once?"Et merito: nam si certain finem esse viderent
