TWO:We have seen how Plotinus establishes the spiritualistic basis of his philosophy. We have now to see how he works out from it in all directions, developing the results of his previous enquiries into a complete metaphysical system. It will have been observed that the whole method of reasoning by302 which materialism was overthrown, rested on the antithesis between the unity of consciousness and the divisibility of corporeal substance. Very much the same method was afterwards employed by Cartesianism to demonstrate the same conclusion. But with Descartes and his followers, the opposition between soul and body was absolute, the former being defined as pure thought, the latter as pure extension. Hence the extreme difficulty which they experienced in accounting for the evident connexion between the two. The spiritualism of Plotinus did not involve any such impassable chasm between consciousness and its object. According to him, although the soul is contained in or depends on an absolutely self-identical unity, she is not herself that unity, but in some degree shares the characters of divisibility and extension.447 If we conceive all existence as bounded at either extremity by two principles, the one extended and the other inextended, then soul will still stand midway between them; not divided in herself, but divided in respect to the bodies which she animates. Plotinus holds that such an assumption is necessitated by the facts of sensation. A feeling of pain, for example, is located in a particular point of the body, and is, at the same time, apprehended as my feeling, not as some one elses. A similar synthesis obtains through the whole of Nature. The visible universe consists of many heterogeneous parts, held together by a single animating principle. And we can trace the same qualities and figures through a multitude of concrete individuals, their essential unity remaining unbroken, notwithstanding the dispersion of the objects in which they inhere.As a means for transmitting power, shafts afford the very important advantage that power can be easily taken off at any point throughout their length, by means of pulleys or gearing, also in forming a positive connection between the motive-power and machines, or between the different parts of machines. The capacity of shafts in resisting torsional strain is as [46] the cube of their diameter, and the amount of torsional deflection in shafts is as their length. The torsional capacity being based upon the diameter, often leads to the construction of what may be termed diminishing shafts, lines in which the diameter of the several sections are diminished as the distance from the driving power increases, and as the duty to be performed becomes less. This plan of arranging line shafting has been and is yet quite common, but certainly was never arrived at by careful observation. Almost every plan of construction has both advantages and disadvantages, and the best means of determining the excess of either, in any case, is to first arrive at all the conditions as near as possible, then form a "trial balance," putting the advantages on one side and the disadvantages on the other, and footing up the sums for comparison. Dealing with this matter of shafts of uniform diameter and shafts of varying diameter in this way, there may be found in favour of the latter plan a little saving of material and a slight reduction of friction as advantages. The saving of material relates only to first cost, because the expense of fitting is greater in constructing shafts when the diameters of the different pieces vary; the friction, considering that the same velocity throughout must be assumed, is scarcely worth estimating.
Contrary to popular belief, Lorem Ipsum is not simply random text.
It has roots in a piece of classical Latin literature
from 45 BC, making it over 2000 years old.
