Knight's American Mechanical Dictionary: A Description of Tools, Instruments, Machines, Processes, and Engineering; History of Inventions; General Technological Vocabulary; and Digest of Mechanical Appliances in Science and the Arts, Volumen3

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Hurd and Houghton, 1876 - 2831 páginas
 

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Página 2126 - For the land, whither thou goest in to possess it, is not as the land of Egypt, from whence ye came out, where thou sowedst thy seed, and wateredst it with thy foot, as a garden of herbs: but the land, whither ye go to possess it, is a land of hills and valleys, and drinketh water of the rain of heaven...
Página 2250 - Give ye ear, and hear my voice; hearken, and hear my speech. Doth the plowman plow all day to sow? doth he open and break the clods of his ground ? When he hath made plain the face thereof, doth he not cast abroad the fitches, and scatter the cummin, and cast in the principal wheat and the appointed barley and the rye in their place ? For his God doth instruct him to discretion, and doth teach him.
Página 2300 - The door for the middle chamber was in the right side of the house: and they went up with winding stairs into the middle chamber, and out of the middle into the third.
Página 2272 - The great and important invention of Crompton was his spindle-carriage, and the principle of the thread having no strain upon it until it was completed. The carriage with the spindles could, by the movement of the hand and knee, recede just as the rollers delivered out the elongated thread in a soft state, so that it would allow of a considerable stretch before the thread had to encounter the stress of winding on the spindle."* This was "the corner-stone of the merits of his invention...
Página 2272 - The first pair of rollers might be regarded as the feeders of the second, which could receive no more than the others sent to them ; and that, again, could be no more than these others themselves took up from the skewers. As the second pair of rollers, therefore, revolved, we will say, five, times for every one revolution of the first pair, or, which is the same thing, required for their consumption in a given time five times the length of thread that the first did, they could, obviously only obtain...
Página 2092 - O ye children of Benjamin, gather yourselves to flee out of the midst of Jerusalem, and blow the trumpet in Tekoa, and set up a sign of fire in Bethhaccerem: for evil appeareth out of the north, and great destruction.
Página 2377 - He was a good deal interested in the description of the apparatus, but unfortunately he squinted, and therefore could see nothing in it but a blurred mixture of images. Lastly, Biot was tried, but Biot was an earnest advocate of the corpuscular theory of light, and until he could be assured that the new contrivance did not contradict that theory, he would not see anything in it. Under the circumstances, the wonder is that the ttereoKOpe ever got fairly into France.
Página 2092 - Little Robe now took his scarlet blanket from his shoulders, and with a graceful wave threw it so as to cover the smouldering grass, when, assisted by Yellow Bear, he held the corners and sides so closely to the ground as to almost completely confine and cut off the column of smoke. Waiting but for a few moments, and until he saw the smoke beginning to escape from beneath, he suddenly threw the blanket aside, and a beautiful balloonshaped column puffed upward, like the white cloud of smoke which...
Página 2190 - A stopcock was so constructed that it opened and shut the passage of a pipe 720 times in a second. Air from the wind-chest of an organ being allowed to pass along the pipe during the rotation of the cock, a musical sound was most smoothly uttered.
Página 2060 - A cylinder surrounded by a spiral ridge or groove, every part of which forms an equal angle with the axis of the cylinder, so that if developed on a plane surface it would be an inclined plane. It is considered as one of the mechanical powers."— Knight.

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