Annals of Philosophy: Or, Magazine of Chemistry, Mineralogy, Mechanics, Natural History, Agriculture, and the Arts, 第 11 巻Baldwin, Cradock, and Joy, 1818 |
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... greater number of rods may be used , and conse- quently a greater degree of strength acquired . * 2. That the whole of this strength can be equally brought * Since writing the above , I have seen at Mr. Brown's Chain Cable Manufac- tory ...
... greater number of rods may be used , and conse- quently a greater degree of strength acquired . * 2. That the whole of this strength can be equally brought * Since writing the above , I have seen at Mr. Brown's Chain Cable Manufac- tory ...
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... greater end , inserted in the bed of the river , and having the rods distributed over its apex or edge . The use of these fulcrums is evidently twofold : to support the mere weight and gravity of the road and rods , and to sustain ...
... greater end , inserted in the bed of the river , and having the rods distributed over its apex or edge . The use of these fulcrums is evidently twofold : to support the mere weight and gravity of the road and rods , and to sustain ...
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... greater than by the construction submitted , and as near as possible in the above ratio of one to three . For in Fig . 18 , where the strain on an inverted arch is shown at three different depths of segment , viz . at 50 , 100 , and 150 ...
... greater than by the construction submitted , and as near as possible in the above ratio of one to three . For in Fig . 18 , where the strain on an inverted arch is shown at three different depths of segment , viz . at 50 , 100 , and 150 ...
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... greater strain of the catena- rian arch , a proportionally stronger fulcrum is required ; and if it is attempted to lighten the strain by raising the fulcrum to a considerable height , it must evidently be attended with very ...
... greater strain of the catena- rian arch , a proportionally stronger fulcrum is required ; and if it is attempted to lighten the strain by raising the fulcrum to a considerable height , it must evidently be attended with very ...
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... greater than the angle CFG . Q. E. D. Lemma II . The arc of a circle is less than its corresponding tangent . With ... greater than the sector ; therefore A D is greater than A B ; that is , the tangent greater than the arc . ( Dr ...
... greater than the angle CFG . Q. E. D. Lemma II . The arc of a circle is less than its corresponding tangent . With ... greater than the sector ; therefore A D is greater than A B ; that is , the tangent greater than the arc . ( Dr ...
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alkali ammonia animal Annals of Philosophy appears ARTICLE ascertained atmosphere barometer barytes beds body borax Calm Calm chalk chemical chlorine Cloudy coast colour compound considerable contains copper crystals degree Ditto double refraction earth employed examined experiments feet flame fluid Foggy fulcrums gale glass heat height hydrogen inches lamp latitude limestone matter mean temperature memoir metallic mineral Morn mountains muriatic acid nature nearly night nitric acid Noon NW NW observations obtained octohedron oxide oxygen paper Paris Partially clear Petalite phosphoric acid phosphorus phosphuretted plants principle prism produced proportion quantity rain refraction remarkable respect result rock rods salt selenium shells Showery silica snow specific gravity strata substance sulphate of iron sulphuric sulphuric acid supposed surface SW SW SW Teesdale tetrahedron thermometer Thick tion tube varnish vegetable vessel weather wind
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204 ページ - ... these primitive particles, being solids, are incomparably harder than any porous bodies compounded of them, even so very hard as never to wear or break in pieces : no ordinary power being able to divide what God himself made one in the first creation.
205 ページ - ... the nature of things depending on them would be changed. Water and earth, composed of old worn particles and fragments of particles, would not be of the same nature and texture now, with water and earth composed of entire particles in the beginning. And therefore, that nature may be lasting, the changes of corporeal things are to be placed only in the various separations and new associations and motions of these permanent particles...
204 ページ - All these things being considered, it seems probable to me that God in the beginning formed matter in solid, massy, hard, impenetrable, moveable particles, of such sizes and figures, and with such other properties and in such proportion to space as most conduced to the end for which he formed them...
179 ページ - The same difference that we observe on the two aides of the Atlantic exists on the two sides of the Pacific, In the north of China, the extremes of the seasons are much more felt than in the same latitudes in New California, and at the mouth of the Columbia. On the eastern side of North America, we...
388 ページ - ... a quarter of an inch in length ; among them the Cancer fulgens was conspicuous. In another species (when put into the microscope by candle light), the luminous property was observed to be in the brain, which, when the animal was at rest, resembled a most brilliant amethyst about the size of a large pin's head, and from which, when it moved, darted flashes of a brilliant silvery light.
464 ページ - ... invisible. These animals are of a great variety of shapes and sizes, and in such prodigious numbers, that, in a short time, the whole surface of the rock appears to be alive and in motion. The most common...
464 ページ - ... which are moved about with a rapid motion in all directions, probably to catch food. Others are so sluggish, that they may be mistaken for pieces of the rock ; and are generally of a dark colour, and from four to five inches long, and two or three round.
68 ページ - ... may be completely restored by the use of hot water. For this purpose, place the flowers in scalding water, deep enough to cover about one-third of the length of the stem ; by the time the water has become cold, the flowers will have become erect and fresh : then cut off the end of the stems, and put them into cold water.
463 ページ - Some days ago the sea had a colour as of blood. Some of us supposed it to be owing to the whales, which at this time approach the coasts in order to bring forth their young. It is, however, a phenomenon which is generally known, has often been described, and is owing to myriads of animalcula.
219 ページ - Folkestone," was begun. Feb. 6. — General Annual Meeting of the Society. The report of the Council, on the general state of the Society, • was read ; and the following is the list of officers for the ensuing year : President.