elementary treatise on nautral philosophy1873 |
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Página 15
... passing over the pulley M , sustains a weight P ' . It will be found that , when the weight P ' has a certain value ... passes through the point of suspension O , which is exactly twice as far from B as from C. 14. When the parallel ...
... passing over the pulley M , sustains a weight P ' . It will be found that , when the weight P ' has a certain value ... passes through the point of suspension O , which is exactly twice as far from B as from C. 14. When the parallel ...
Página 25
... pass , and small enough to prevent the passage of the small solid bodies held in suspension in the water . It is by means of permeability that the communication and con- tact of liquids takes place in organized bodies ; for the vessels ...
... pass , and small enough to prevent the passage of the small solid bodies held in suspension in the water . It is by means of permeability that the communication and con- tact of liquids takes place in organized bodies ; for the vessels ...
Página 36
... passes through the point of support . If a body were traversed by an axis through its centre of gravity , its equilibrium would be neutral , and the body would remain in EQUILIBRIUM OF BODIES . 37 equilibrium in all positions . 36 GRAVITY .
... passes through the point of support . If a body were traversed by an axis through its centre of gravity , its equilibrium would be neutral , and the body would remain in EQUILIBRIUM OF BODIES . 37 equilibrium in all positions . 36 GRAVITY .
Página 39
... pass vertically under the centre of gravity . By repeating the operation we may find a second line which possesses the same property , and the required axis must pass through their intersection and be perpendicular to the plate ...
... pass vertically under the centre of gravity . By repeating the operation we may find a second line which possesses the same property , and the required axis must pass through their intersection and be perpendicular to the plate ...
Página 63
... passing through two ivory balls M , M ' , is set in rotation in a horizontal plane by means of the mechanism shown in the ... passes on the further side of B and finally arrives at D. There is therefore an instant in the motion when the ...
... passing through two ivory balls M , M ' , is set in rotation in a horizontal plane by means of the mechanism shown in the ... passes on the further side of B and finally arrives at D. There is therefore an instant in the motion when the ...
Términos y frases comunes
acid action amount angle apparatus atmosphere atmospheric pressure axis barometer battery body Boyle's law called calorimeter carbonic acid centre of gravity circuit coil column compressed condensation conductor connected consists copper cylinder denote density diminished direction distance earth effect electricity electro-motive force employed equal equilibrium expansion experiment formula gases given glass globe Hence horizontal hygrometer inch increase instrument insulated latent heat length lens Leyden jar light liquid lower machine magnet means measured mercury metal millimetres mirror motion needle negative observed obtained opposite parallel particles passes pendulum piston placed plane plate pole portion position potential pressure produced proportional quantity ratio rays reflected refraction represented in Fig resistance result rotation side solid specific gravity specific heat steam substance sulphuric acid suppose surface telescope temperature tension thermometer tion tube vapour velocity vertical vessel vibrations volume weight wire zinc
Pasajes populares
Página 286 - Its banks and its bottom are of cold water, while its current is of warm. The Gulf of Mexico is its fountain, and its mouth is in the Arctic seas. It is the Gulf Stream. There is in the world no other such majestic flow of waters. Its current is more rapid than the Mississippi or the Amazon, and its volume more than a thousand times greater.
Página 499 - It is better, on this account, in graduating the bottle, to make two scratches as represented in the drawing, one at the top and the other at the bottom of the curve : this prevents any future mistake.
Página 437 - Q are related by р/с' = constant, where y is the ratio of specific heat at constant pressure to specific heat at constant volume, for compressible fluids.
Página 633 - Unlike sea water, brackish waters differ in quality, quantity, and composition not only from place to place, but also from time to time even at a given location.
Página 910 - R' P', SP, will have a constant ratio ; or the sines of the angles of incidence and refraction are in a constant ratio.
Página 218 - The resistance which is opposed to a pump rod in raising water, is ~equal to the weight of a column of water whose base is the area of the piston, and...
Página 315 - A GLACIER is AN IMPERFECT FLUID, OR A VISCOUS BODY. WHICH IS URGED DOWN SLOPES OF A CERTAIN INCLINATION BY THE MUTUAL PRESSURE OF ITS PARTS.
Página 9 - The principle of inertia is an abstract principle which must be considered as applicable to a single isolated particle. It may be enounced in the following terms: — An isolated 'material point cannot change its state, whether of rest or motion. That is to say, if it be at rest it will remain at rest; if it be in motion it will continue to move in the same direction and with the same velocity.
Página 92 - If a vessel full of water, closed on all sides, has two openings, the one a hundred times as large as the other, and if each be supplied with a piston which fits exactly, a man pushing the small piston will exert a force which will equilibrate that of a hundred men pushing the Pig. 49.— Pascal's Principle. piston which is a hundred times as large, and will overcome that of ninety-nine.
Página 71 - It is the curve which is traced by a point in the circumference of a circle which rolls along a straight line. The...