British Encyclopedia: Or, Dictionary of Arts and Sciences, Comprising an Accurate and Popular View of the Present Improved State of Human Knowledge, Том 4Mitchell, Ames, and White, 1819 |
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Страница 11
... added , is very distinct in different shells , consisting in some of a very thin pellucid film , and in others laminated , pilous , vel- vetty , fibrous , or rugged . Few shells , having a rugose surface , are destitute of this external ...
... added , is very distinct in different shells , consisting in some of a very thin pellucid film , and in others laminated , pilous , vel- vetty , fibrous , or rugged . Few shells , having a rugose surface , are destitute of this external ...
Страница 11
... added , which , with the exception of a small number of new spe- cies now first published , we have previ ously given to the world , in several de- tached essays , in the pages of the Journal VOL . IV . of the Academy of Natural ...
... added , which , with the exception of a small number of new spe- cies now first published , we have previ ously given to the world , in several de- tached essays , in the pages of the Journal VOL . IV . of the Academy of Natural ...
Страница 11
... of the base into half of the side , and adding the product to that of the base . 2. The altitudes of similar cones are as the radii of the bases , and the axes , likę- D wise , are as the radii of the bases , CON CON.
... of the base into half of the side , and adding the product to that of the base . 2. The altitudes of similar cones are as the radii of the bases , and the axes , likę- D wise , are as the radii of the bases , CON CON.
Страница 11
... added a re- storation of the eighth book , executed with so much ability as to leave little room to regret the original . Since the revival of learning , the theory of the conic sections has been much cul- tivated , and is the subject ...
... added a re- storation of the eighth book , executed with so much ability as to leave little room to regret the original . Since the revival of learning , the theory of the conic sections has been much cul- tivated , and is the subject ...
Страница 11
... adding the equals , 2 B 02 = 2f M2 ; and , by subtracting the equals , 2 M F 2A O3 . Therefore ƒ M = = = BO , is manifest . and F M = A 0 ; whence the proposition Fig . 44 , 45 , and 46. A straight line drawn from any point in a conic ...
... adding the equals , 2 B 02 = 2f M2 ; and , by subtracting the equals , 2 M F 2A O3 . Therefore ƒ M = = = BO , is manifest . and F M = A 0 ; whence the proposition Fig . 44 , 45 , and 46. A straight line drawn from any point in a conic ...
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Страница 28 - 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; and that 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...
Страница 28 - 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; compound bodies being apt to break not in the midst of solid particles, but where those particles are laid together and only touch in a few points.
Страница 28 - ... 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...
Страница 28 - End for which he form'd them; and that 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...
Страница 14 - The solidity of a cylinder is equal to the area of its base multiplied by its altitude.
Страница 28 - ... 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. While the particles continue entire, they may compose bodies of one and the same nature and texture in all ages ; but should they wear away or break in pieces, the nature of things depending on them would be changed.