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Updated: September 5, 2025
In my walks outside of the town, along the beach, I noticed some Chinamen fishing: their net was very extensive and staked down on the beach, to its sides were attached ropes which led to a temporary shed upon a rock, where they were fastened to an axle having treadles, which a Chinaman, by applying his feet, made revolve, and by this means elevated and depressed the net at pleasure. Saw also a new principle in hydraulics, the object to which it was applied being to fill a sluice to irrigate a vegetable garden from a reservoir, and the modus operandi was this: two Chinamen, standing vis-
"It is not improbable," writes Sir William Willcocks, the great irrigationist, "that the wisdom of ancient Chaldea had its foundations in the necessity of a deep mastery of hydraulics and meteorology, to enable the ancient settlers to turn what was partially a desert and partially a swamp into fields of world-famed fertility."
See the investment of capital in aqueducts made useless by hydraulics; fortifications, by gunpowder; roads and canals, by railways; sails, by steam; steam by electricity. You admire this tower of granite, weathering the hurts of so many ages. Yet a little waving hand built this huge wall, and that which builds is better than that which is built. The hand that built can topple it down much faster.
But when it was discovered that the heart of man is constructed upon the recognised rules of hydraulics, and with its great tubes is furnished with common mechanical contrivances, valves; when it was discovered that the eye has been arranged on the most refined principles of optics, its cornea, and humours, and lens properly converging the rays to form an image its iris, like the diaphragm of a telescope or microscope, shutting out stray light, and also regulating the quantity admitted; when it was discovered that the ear is furnished with the means of dealing with the three characteristics of sound its tympanum for intensity, its cochlea for pitch, its semicircular canals for quality; when it was seen that the air brought into the great air-passages by the descent of the diaphragm, calling into play atmospheric pressure, is conveyed upon physical principles into the ultimate cells of the lungs, and thence into the blood, producing chemical changes throughout the system, disengaging heat, and permitting all the functions of organic life to go on; when these facts and very many others of a like kind were brought into prominence by modern physiology, it obviously became necessary to admit that animated beings do not constitute the exception once supposed, and that organic operations are the result of physical agencies.
When I came to I found that it was still bleeding, so I tied one end of my handkerchief very tightly round the wrist and braced it up with a twig." "Excellent! You should have been a surgeon." "It is a question of hydraulics, you see, and came within my own province." "This has been done," said I, examining the wound, "by a very heavy and sharp instrument." "A thing like a cleaver," said he.
He carried the tumbler to Hector, who drank, and said the water was delicious. Hector could not imagine how the running water had got there, and Willie had to tell him what I am now going to tell my reader. His grandmother's sovereign and his own hydraulics had brought it there.
I understood enough of hydraulics to know that water will rise to its own level if guided by a pipe or tube; I knew, therefore, that if I had only possessed a piece of hose, I could have attached it to the tap-hole, and thus discovered how high the water stood in the cask. But where was the hose or other pipe to be had?
The foolishness and ignorance of their arguments are almost incredible. But however foolish, they had to be disproved; and Eads set himself patiently to work to point out the errors in logic and in physics; and in doing so he wrote what those who know call one of the greatest works on river hydraulics.
Nancy, I say, for God's sake, quicken yourself with the hydraulics, or the best mathematician in Ireland's gone to the abode of Euclid and Pythagoras, that first invented the multiplication table."
Each had its prolific little mansion teeming with children; with an old hat nailed against the wall for the housekeeping wren; a motherly hen, under a coop on the grass-plot, clucking to keep around her a brood of vagrant chickens; a cool, stone well, with the moss-covered bucket suspended to the long balancing-pole, according to the antediluvian idea of hydraulics; and its spinning-wheel humming within doors, the patriarchal music of home manufacture.
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