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Updated: May 22, 2025
"Mr Dobbs," said I, walking close up to the desk, but the Dominie answered not. I repeated his name in a louder voice. "Cosine of X plus AB minus Z minus a half; such must be the result," said the Dominie talking to himself. "Yet it doth not prove correct. I may be in error. Let me revise my work," and the Dominie lifted up his desk to take out another piece of paper.
She is as natural and simple as a girl can be, and doesn't throw Greek roots at you, nor try to convince you of the difference between the songs of the troubadours and the sonnets of Petrarch. She doesn't care a rap whether Dante's Beatrice was a real woman or a principle; whether James the First poisoned his son; or what's the margin between a sine and a cosine.
Rita was to return to Cuba with her brother, but Carlos showed a most thoughtful unwillingness to hasten his sister's departure. Peggy's flaxen hair and blue eyes had been a revelation to the young man, accustomed to dark beauties all his life, and he found "Cosine Paygi" a charming companion. Margaret was still kept a little quiet by her hands, though the blisters were rapidly healing.
Let one of the points be now depressed below the given plane; then the whole path of the light reflected from it will be lengthened by a line which is to the depression of the point as twice the cosine of incidence to the radius.
A. To find how far the piston is from the end of its stroke when the steam that is propelling it by expansion is allowed to escape to the atmosphere or condenser to the lap on the steam side add the lead; divide the sum by half the stroke of the valve, and find the arc whose sine is equal to the quotient; find the arc whose sine is equal to the lap on the eduction side, divided by half the stroke of the valve; add these two arcs together and subtract 90°; find the cosine of the residue, subtract it from 1, and multiply the remainder by half the stroke of the piston; the product is the distance of the piston from the end of its stroke when the steam that is propelling it is allowed to escape into the atmosphere or condenser.
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