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A slow smile grew on Hradzka's thin lips as he thought of the tortures with which he would put Zarvas Pol to death. He glanced up at the great disc of the indicator and frowned. Already he was back to the year 7500, A.E., and the temporal-displacement had not begun to slow. The disc was turning even more rapidly 7000, 6000, 5500; he gasped slightly.

Inside he disclosed a large disc of thin steel, like those used by some mechanical music-boxes, only without any perforations. He connected the wires from the box to a sort of megaphone. Then he started the disc revolving. Out of the little megaphone horn, sticking up like a miniature talking-machine, came a voice: Number please. Four four three o, Yorkville. Busy, I'll call you.

The diameter of the screw of the Rattler being 10 feet, the area of its disc is 78.5 square feet; and with the amount of thrust already mentioned as existing in the first experiment, viz. 8722 lbs., the reacting pressure on each square foot of the screw's disc will be 108-1/2 lbs.

There were to be seen camararius and pincerna, chamberlain and cupbearer; disc thegn and hors thegn ; the thegn of the dishes, and the thegn of the stud; with many more, whose state offices may not impossibly have been borrowed from the ceremonial pomp of the Byzantine court; for Edgar, King of England, had in the old time styled himself the Heir of Constantine.

Stockdale did the same, and saw the village lying like a map below him, over which moved the figures of the excisemen, each foreshortened to a crablike object, the crown of his hat forming a circular disc in the centre of him. Some of the men had turned their heads when the young preacher's figure arose among them. 'What, Mr. Stockdale? said Matt Grey, in a tone of surprise.

A perforated metal globe threaded on the spindle gives the familiar humming sound. A spectrum disc of the seven primary colours violet, indigo, blue, green, yellow, orange, red revolved by the top, will appear more or less white, the purity of which depends on the accuracy of the tints used.

Well, each of those bull's eyes came from the center of a sheet of crown glass just where a lump of hot glass was attached so the blower could whirl or spin it from the middle and make it into a flat disc.

When this idea, which has already been brought into operation, has been more fully developed, it will be seen that a large circular slowly-revolving disc, set at an angle and properly furnished, will supply a more convenient form of free elevator. One side will be used by those who are going up and the other by those who wish to come down.

"Because most probably then the rotary motion of the moon upon her axis was not equal to her revolution, an equality which presents each part of her disc during fifteen days to the action of the solar rays." "Granted," replied Nicholl, "but why should not these two motions have been equal, as they are really so?" "Because that equality has only been determined by terrestrial attraction.

To satisfy his companions, Barbicane began to uncover the window at the bottom of the projectile, which would allow them to observe the earth direct. The disc, which the force of the projection had beaten down to the base, was removed, not without difficulty. Its fragments, placed carefully against a wall, might serve again upon occasion.