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The star twinkled, trembled, and turned, at first with a slow, gyratory motion, then faster and faster, increasing its circumference at every rotation until it formed a brilliant disk, and we no longer saw the dwarf, who seemed absorbed in its light.... All being now ready, the dervish, without uttering a word, or removing his gaze from the disk, stretched out a hand, and taking hold of mine he drew me to his side, and pointed to the luminous shield.
He took his own stand at the back, to steer by means of a large scull; but, notwithstanding their efforts, Wilson and John Mangles soon found themselves in an inverse position, which made the action of the oars impossible. There was no help for it; they could do nothing to arrest the gyratory movement of the raft; it turned round with dizzying rapidity, and drifted out of its course.
Fortunately the gyratory movement of the water was opposite to that of the suspensory screws, otherwise the aeronef would have been hurled into the sea. But she began to spin round on herself with frightful rapidity. The danger was immense, and perhaps impossible to escape, for the engineer could not get through the spout which sucked him back in defiance of his propellers.
Without the prodigious coolness of the engineer, who reversed the gyratory motion of the fore propeller and converted it into a suspensory screw, the men of the "Albatross" would all have been asphyxiated by the fall. But if they had escaped asphyxia, how had they escaped being drowned in the Pacific?
As we shall see when we come to the spiral nebulæ, gyratory movements are exceedingly prevalent throughout the universe, and the structure of the Milky Way is everywhere suggestive of them. But this is hazardous sport even for the imagination to play with suns as if they were but thistle-down in the wind or corks in a mill-race.
You see the passage of the projectile is so rapid, its gyratory movement so accelerated, that, in some way, the threads of the fabric are not broken: they are only pushed aside. They come together again after the passage of the ball, and unless a very careful examination is made, one would never know that a projectile had perforated the material." The two policemen were undressing the corpse.
These streaks, at length, spreading out to a great distance, and entering into combination, took unto themselves the gyratory motion of the subsided vortices, and seemed to form the germ of another more vast. Suddenly very suddenly this assumed a distinct and definite existence, in a circle of more than a mile in diameter.
It is the old story again of the mountain of adamant. At last, by a violent and almost superhuman effort, I tear it away just as the ball which is still executing its gyratory motions is about to run round it and drag me with it if Oh, what intense stupendous light! The globe of fire bursts we are enveloped in cascades of living fire, which flood the space around with luminous matter.
At times, this sameness was disturbed, exhibiting between the spectator and the sun the appearance of a water-spout, owing to the gyratory motions of the impalpable mineral. The sand penetrated the most secluded apartments; furniture wiped in the morning, would be so covered with it in the afternoon, that one could write on it legibly.
THE WING STRUCTURE. The wing structure of every flying creature that man has examined, has one universal point of similarity, and that is the manner of its connection with the body. It is a sort of universal joint, which permits the wing to swing up and down, perform a gyratory movement while doing so, and folds to the rear when at rest.
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