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Updated: June 5, 2025
The Greeks employed the lever, the tackle, and the crane, the force-pump, and the suction-pump. They had discovered that steam could be mechanically applied, though they never made any practical use of steam. In common with other ancients they knew the principle of the mariner's compass. The Egyptians had the water-wheel and the rudimentary blast-furnace.
They seemed to move in a kind of echellon, the bands in the rear constantly flying to the front, and then halting to feed, until in turn these were headed by others that had advanced over them in a similar manner. The noise produced by their wings was not the least curious phenomenon; and resembled a steady breeze playing among the leaves of the forest, or the sound of a water-wheel.
Here and there all about stood the waxen flowers of sagittaria above the barbed floating leaves, cool and darkly green. Close to the banks the tall and delicately branching water-plantains, on which great grasshoppers often hang their shed skins, were flecked with pale-pink blooms-flowers of biscuit-porcelain on hair-like stems. The splashing of a water-wheel roused me from my idle humour.
The sound of the cataract stole with a whispering rush through the underbrush, for the water was low at midsummer, and a good deal of it was diverted to the mill, which was working busily away, with its big water-wheel going round and round. Nils paused close to the mill, and peered intently into the rushing current; but nothing appeared.
When we regard the general aspect of the Soudan, it is extreme wretchedness; the rainfall is uncertain and scanty, thus the country is a desert, dependent entirely upon irrigation. Although cultivation is simply impossible without a supply of water, one of the most onerous taxes is that upon the sageer or water-wheel, with which the fields are irrigated on the borders of the Nile.
"Did you see them when they came into the garden?" "No, sir? I was fixing my water-wheel in the brook, when I heard them at the tree. I went up, and tried to prevent Shuffles from taking the peaches. I caught hold of him, and pulled him away. He said he couldn't stop to lick me then, but he'd do it within twenty-four hours. Then he hit me when I called for help." "The young scoundrel!
The foundation of the power house was ready for the machinery and the Pelton water-wheel had been installed. It had taken time and money and grimy sweat. Was it all in vain? Asking himself the question for which ten minutes at most would find the answer Bruce sprang upon the tilting raft and nodded "Shove off."
Everything is powdered over white, like sugar on pancakes when you are allowed to help yourself. And he opened a door and showed us the great water-wheel working on slow and sure, like some great, round, dripping giant, Noel said, and then he asked us if we fished. 'Yes, was our immediate reply.
He toils as patiently as his water-wheel buffalo, and on that toil depends the wealth of Egypt which supports saints and sinners, schools and shops, with all our European schemes and enterprises thrown in. As for us British, if our object is to enhance the prestige of our race or creed, we fall very short of achievement.
Suppose, however, an estuary could be found which had an area of forty acres; then if a wall were thrown across the mouth so that the tide could be impounded, the total amount of power that could be yielded by a water-wheel worked by the incessant influx and efflux of the tide would be equal to that yielded by the one hundred horse engine, running continuously from one end of the year to the other.
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