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The Edison unison comprised a lever with a free end travelling in a spiral or worm on the type-wheel shaft until it met a pin at the end of the worm, thus obstructing the shaft and leaving the type-wheels at the zero-point until released by the printing lever. This device is too well known to require a further description.
Then note whether the balance is level; that the mechanism for raising and lowering the beams works smoothly; that the pan-arrests touch the pans when the beam is lowered; and that the needle swings equal distances on either side of the zero-point when set in motion without any load on the pans.
The board-walks along the street, where they exist at all, plainly typify this absence of a well-defined dead level or zero-point in the popular sentiment; for the various sections are built each upon the same eccentric plan that obtains in the corresponding house.
Verily, he must have fallen to the zero-point of anti-Semitic callousness who is not thrilled through and through by the lofty fortitude, the saint-like humility, the trustful resignation to the will of God, the stoic firmness, laid bare by the study of Jewish history.
The pressure of the rod against the levers was kept constant by a small counterweight, so that the slightest change in the length of the rod was instantly shown on a dial about three feet wide multiplied about thirty-two thousand times. The zero-point was gained by packing the rod in wet snow.
I may mention that so great has been the influence of Ptolemy on geography, that, up to the middle of the last century, Ferro, in the Canary Islands, was still retained as the zero-point of the meridians of longitude.
This note I had this morning marks my zero-point, I fancy. Read it!" He tossed a crumpled letter across to me. It was dated from Montague Place upon the preceding evening, and ran thus: "DEAR MR. HOLMES: I am very anxious to consult you as to whether I should or should not accept a situation which has been offered to me as governess.
Sitting in his chair, the zero-point of longitude for the world, he commands not only the little knot of observers and computers around him, but when he says to London, 'It is one o'clock, London adopts that time, and her ships start for their voyages around the globe, and continue to count their time from that moment, wherever the English flag is borne.
Fill the burette to a point above the zero-point and draw off the water until the meniscus is just below that mark. It is then ready for calibration. Chromic acid in sulphuric acid is usually found to be the best cleansing agent, but the mixture must be warm and concentrated.
Indiman gathered up the ten one-thousand-dollar bills and stuffed them into his pocket. "Want a receipt?" he asked. "It is not necessary." "Well, at least, we must have a bumper to celebrate the conclusion of the transaction. Waiter." We took a cab in the gray of the dawning hour and drove home. As might have been predicted, my spirits had dropped to the zero-point again.
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