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Its main parabolic arch is a 500 foot span while the total length is 650 feet. Although its construction was fraught with contrast hazard it only cost two lives, despite the fact that seven hundred white men and two thousand natives were employed on it. In the building of the Firth of Forth bridge which was much less dangerous, more than fifty men were killed.
My next recollection is that of Brown, dark against the sky, describing a parabolic curve and alighting further up the line. The train had gone, and a sloppy gurgling noise mingled with muffled exclamations growing more distinct indicated that Brown was endeavouring to walk in my direction. These were the only sounds that interrupted the steady noise of pouring rain. There was nothing in sight.
Then followed a loud report, while the ground trembled, and there rose to the surface of the lava an immense bubble of vapor. This, bursting with a crackling noise, threw out to the height of about 1200 feet large quantities of red-hot stones and scoriae, which, describing parabolic curves, fell in a fiery, shower all around.
Luther tells us somewhere, in his parabolic way, of people that wept because there were no visible pillars to hold up the heavens, and were afraid that the sky would fall upon their heads. No, no, there is no fear of that happening, for an unseen hand holds them up.
Although, according to his usual method, he completed the parabolic picture, filling up the fore and back grounds with the objects that naturally lay there, yet when he comes to the interpretation, he passes in silence all these preparatory features, and tells the meaning of the last only the separation of the wicked from the just through the ministry of angels at the end of the world.
Sometimes a parabolic sense is still more undeniably present in a dream; sometimes I cannot but suppose my Brownies have been aping Bunyan, and yet in no case with what would possibly be called a moral in a tract; never with the ethical narrowness; conveying hints instead of life's larger limitations and that sort of sense which we seem to perceive in the arabesque of time and space.
Is not that the meaning of the altars, and priests, and sacrifices, and the old cumbrous apparatus of the Mosaic law? Was it not all a picture-book in which the infant eyes of the race might see in a material form deep spiritual realities? Was not that the meaning and explanation of our Lord's parabolic teaching?
The truths which these Parabolic and Allusive Poems wrap up and conceal, have been safely concealed hitherto, because they are not those common-place truths which we usually look for as the point and moral of a tale which is supposed to have a moral or politic intention, truths which we are understood to be in possession of beforehand, while the parable or instance is only designed to impress the sensibility with them anew, and to reach the will that would not take them from the reason, by means of the senses or the imagination.
You remember that I called your attention to a shining object underneath the circular opening in the roof. You could not make out what it was, but I saw enough to convince me that it was a gigantic parabolic mirror. I'll show you a smaller one of the same kind presently.
By this arrangement each lens transmits to all the points of the horizon in succession a light equivalent to that of from three to four thousand lamps with double currents, and eight times greater than the light produced by the silver parabolic reflectors; it is, according to Arago, the same amount of light as would be obtained if it were possible to bring together the third of the whole number of gas-lights which illumine the streets, the shops, and the theatres of Paris; and this wonderful result is obtained from a single lamp.
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