The Edinburgh Journal of Science, Volumen1Thomas Clark, 1829 |
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Página 17
... Solids , with a Formula for the Modulus of Gravity . By W. S. SANKEY , Esq . A. M. , of the University of Dublin , and Extraordinary Member of the Royal Medical Society of Edinburgh . Communicated by the Author . IN estimating the ...
... Solids , with a Formula for the Modulus of Gravity . By W. S. SANKEY , Esq . A. M. , of the University of Dublin , and Extraordinary Member of the Royal Medical Society of Edinburgh . Communicated by the Author . IN estimating the ...
Página 19
... in each stratul tance between the particles , a or x hom mu geneity of the fluid , the must depend on the dis- be a function of t . To apply this to a particular case , let the in producing expansion of Fluids and Solids . 19.
... in each stratul tance between the particles , a or x hom mu geneity of the fluid , the must depend on the dis- be a function of t . To apply this to a particular case , let the in producing expansion of Fluids and Solids . 19.
Página 21
... off from the lowest stratum being m6 , the entire number driven off will = 1⁄2 m18 = 9sm . It is obvious , however , that this 2 will be modified according as the number of strata is in producing expansion of Fluids and Solids . 21.
... off from the lowest stratum being m6 , the entire number driven off will = 1⁄2 m18 = 9sm . It is obvious , however , that this 2 will be modified according as the number of strata is in producing expansion of Fluids and Solids . 21.
Página 23
... known we can aga calculate the expansions for new temperatures for either body at of the other being known . t Thus knowing the modulus , and obtaining by observation a in producing expansion of Fluids and Solids . 23.
... known we can aga calculate the expansions for new temperatures for either body at of the other being known . t Thus knowing the modulus , and obtaining by observation a in producing expansion of Fluids and Solids . 23.
Página 24
... solid , we can calculate the law for all other solids . Further , we have seen above , that a = N ( P + T ) - T , and also that an ( p + t ) —t .. N ( P + T ) —T = n ( p + t ) —t ; there- डे + fore , putting for N , n their values ; m ...
... solid , we can calculate the law for all other solids . Further , we have seen above , that a = N ( P + T ) - T , and also that an ( p + t ) —t .. N ( P + T ) —T = n ( p + t ) —t ; there- डे + fore , putting for N , n their values ; m ...
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Pasajes populares
Página 32 - IV. In experimental philosophy, we are to look upon propositions collected by general induction from phenomena as accurately, or very nearly true, notwithstanding any contrary hypothesis that may be imagined, till such time as other phenomena occur, by which they may either be made more accurate, or liable to exceptions...
Página 306 - A number perished, who sunk with their boats in the river. A bursting of the earth just below the village of New Madrid, arrested this mighty stream in its course, and caused a reflux of its waves, by which in a little time a great number of boats were swept by the ascending current into the mouth of the Bayou, carried out and left upon the dry earth, when the accumulating waters of the river had again cleared their current. There...
Página 306 - And they remark that the shocks were clearly distinguishable into two classes ; those in which the motion was horizontal, and those in which it was perpendicular. The latter were attended with...
Página 309 - Molecules, appear to be spherical, or nearly so, and to be between l-20,000dth and l-30,000dth of an inch in diameter; and that other particles of considerably greater and various size, and either of similar or of very different figure, also present analogous motions in like circumstances.
Página 309 - ... extremely minute particles of solid matter, whether obtained from organic or inorganic substances, when suspended in pure water, or in some other aqueous fluids, exhibit motions for which I am unable to account, and which, from their irregularity and seeming independence, resemble in a remarkable degree the less rapid motions of some of the simplest animalcules of infusions.
Página 11 - Methodi naturalis fragmenta studiose inquirenda sunt. Primum et ultimum hoc in Botanicis desideratum est" (§ 77); „Methodus naturalis est ultimus finis Botanices
Página 320 - The centre of this aperture must be in the common axis of the lenses ; and the image of the perforation formed by the large lens must be brought, by proper adjustment of the distance of that lens, into the same plane as the object to be examined. With a microscope so constructed, the author has seen the finest striae and serratures upon the scales of the lepisma and podura, and the scales upon a gnat's wing, with a degree of delicate perspicuity not attainable with any other microscope he has tried....
Página 305 - Large lakes of twenty miles in extent were made in an hour. Other lakes were drained. The whole country, to the mouth of the Ohio in one direction, and to the St. Francis in the other, including a front of three hundred miles, was convulsed to such a degree as to create lakes and islands, the number of which is not...
Página 317 - In the illumination of microscopic objects, whatever light is collected and brought to the eye, beyond that which is fully commanded by the object-glasses, tends rather to impede than to assist distinct vision. " My endeavour has been, to collect as much of the admitted light as can be done by simple means, to a focus in the same plane as the object to be examined. For this purpose, I have used, with success, a plane mirror to direct the light, and a plano-convex lens to collect it, the plane side...
Página 343 - ... generally called gooseberry bottles. Having got them properly cleaned, and the fruit ready picked, (which should not be too ripe,) fill such of them as you intend doing at one time, as full as they will hold, so as to admit the cork going in, frequently shaking the fruit down whilst filling. When done, fit the corks to each bottle, and stick them lightly in, so as to be easily taken out when the fruit is sufficiently scalded, which may be done either in a copper, or large kettle...