The Elements of Physics |
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Page vii
... Direction of Gravity - Laws of Falling Bodies — Uniformly Accelerated Motion - Atwood's Machine - Law of Gravity - Pro- jectiles - Centre of Gravity - Illustration Equilibrium , Stable and Unstable .. Arts . 38-50 SECTION II . The ...
... Direction of Gravity - Laws of Falling Bodies — Uniformly Accelerated Motion - Atwood's Machine - Law of Gravity - Pro- jectiles - Centre of Gravity - Illustration Equilibrium , Stable and Unstable .. Arts . 38-50 SECTION II . The ...
Page x
... Direction of Propagation - Rays and Pencils of Light - Intensity as inverse square - Opaque Bodies- Image of Sun always round - Velocity of Light - Aberration Arts . 190-198 .... SECTION II . Reflexion at a Plane Surface - Formation of ...
... Direction of Propagation - Rays and Pencils of Light - Intensity as inverse square - Opaque Bodies- Image of Sun always round - Velocity of Light - Aberration Arts . 190-198 .... SECTION II . Reflexion at a Plane Surface - Formation of ...
Page 27
... directions where it is possible , a nucleus is at last obtained , and all subsequent division will only diminish the ... direction than parallel to the existing faces , we know that the entire crystal is not of the primitive form . It ...
... directions where it is possible , a nucleus is at last obtained , and all subsequent division will only diminish the ... direction than parallel to the existing faces , we know that the entire crystal is not of the primitive form . It ...
Page 28
... direction , we may continue to diminish the magnitude of the crystal , as long as the mechanical division is ... directions , indicate that the force of cohesion does not exert its power in the same degree in all the points of their ...
... direction , we may continue to diminish the magnitude of the crystal , as long as the mechanical division is ... directions , indicate that the force of cohesion does not exert its power in the same degree in all the points of their ...
Page 30
... direction which must be coun- teracted by a pressure exerted in the opposite direction . That each such force , or pressure , acting at any point of a body , or a machine , must be accompanied and counteracted by an equal and opposite ...
... direction which must be coun- teracted by a pressure exerted in the opposite direction . That each such force , or pressure , acting at any point of a body , or a machine , must be accompanied and counteracted by an equal and opposite ...
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action angle angle of incidence appears atmosphere attraction axis ball body cause centre of gravity colours column conductor consequently considered convex lens crystal crystalline lens density direction distance double refraction earth effect elastic force electricity electromotive force equal equilibrium evaporation exerted exist experiments fluid glass greater hence inches incidence instance intensity iron isochronism laws length lens less light liquid luminous magnetic mass mercury metal mirror motion moving nature needle object observed ordinary ray orifice oscillation parallel particles passes pencil pendulum perpendicular phenomena plane poles portion position preceding pressure principles prism produced propagated properties rays reflected reflexion refraction remarkable resinous seen sensible shew shewn side solid sound space spectrum string substance suppose surface takes place temperature theory thermometer tion tricity tube vapour velocity vessel vibrations violet vitreous vitreous fluid wave weight zinc
Popular passages
Page 16 - ... it seems probable to me that God in the beginning formed matter in solid, massy, hard, impenetrable, movable 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 divide what God himself made...
Page 15 - All these things being consider'd, it seems probable to me, that God in the Beginning form'd 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 form'd them...
Page 359 - Every ray of light in its passage through any refracting surface, is put into a certain transient constitution or state; which, in the progress of the ray, returns at equal intervals, and disposes the ray at every return to be easily transmitted through the next refracting surface ; and between the returns to be easily reflected by it.
Page 280 - The immediate cause of the phenomena of heat, then, is motion, and the laws of its communication are precisely the same as the laws of the communication of motion.
Page 281 - ... greatest in the last, the particles have a motion round their own axes, with different velocities, the particles of elastic fluids moving with the greatest quickness ; and that in...
Page 360 - ... hot; that the vibrations thus excited are propagated in the refracting or reflecting medium or substance, much after the manner that vibrations are propagated in the air for causing sound, and move faster than the rays so as to overtake them...
Page 91 - that every particle of matter in the universe attracts every other particle, with a force whose direction is that of the line joining the two, and whose magnitude is directly as the product of their masses, and inversely as the square of their distances from each other.
Page 16 - 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. 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...
Page 281 - It seems possible to account for all the phenomena of heat, if it be supposed that in solids the particles are in a constant state of vibratory motion, the particles of the hottest bodies moving with the greatest velocity and through the greatest space ; that in...
Page 490 - ... some of those innumerable beautiful productions it casts up with lavish prodigality, but whose acquisition can be regarded as no diminution of the treasures that remain.