Natural Philosophy for General Readers and Young PersonsD. Appleton and Company, 1872 - 522 pàgines |
Altres edicions - Mostra-ho tot
Natural Philosophy for General Readers and Young Persons Adolphe Ganot,Edmund Atkinson Visualització completa - 1878 |
Natural Philosophy for General Readers and Young Persons: Translated and ... Adolphe Ganot Previsualització no disponible - 2018 |
Natural Philosophy for General Readers and Young Persons: Second Edition Edmund Atkinson,Adolphe Ganot Previsualització no disponible - 2017 |
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acid action apparatus atmosphere atmospheric pressure attraction axis barometer battery body brass bulb called camera obscura carbon carbonic acid centre of gravity colour column concave concave mirror condensing conductor consists copper cylinder density direction disc distance earth effects elastic force electricity electrified electroscope equal equilibrium expansion experiment fixed fluid focus galvanometer gases glass greater heat Hence horizontal hydrometer immersed inches increases instrument insulated iron layer lens lenses lever Leyden jar light liquid luminous machine magnetic magnetised means mercury metal mirror molecules motion needle negative nonconductors number of vibrations object observed oscillations passes pendulum piston placed plane plate pole position pressure principal produced quantity rays reflected refraction represented in fig rises screw seen solid sound specific gravity steam stopcock substances sulphuric acid surface telescope temperature thermometer tion traversed tricity tube velocity vessel voltaic pile volume weight wire zero zinc
Passatges populars
Pàgina 129 - If it were not for the resistance of the atmosphere, and friction, the liquid would rise to a height above the water in the dish equal to the difference of the level in the two globes.
Pàgina 234 - By a unit of heat is meant the quantity of heat necessary to raise the temperature of one kilogramme of water one degree centigrade, or more accurately from 0° to 1°.
Pàgina 63 - Pressure exerted anywhere upon a mass of liquid is transmitted undiminished in all directions, and acts with the same force on all equal surfaces, and in a direction at right angles to those surfaces.
Pàgina 254 - One of the bulbs is covered with muslin, and is kept continually moist by being connected with a reservoir of water by means of a string. Unless the air is saturated with moisture the wet-bulb thermometer always indicates a lower temperature than the other, and the difference between the indications of the two thermometers is greater in proportion as the air can take up more moisture. The tension e of the aqueous vapour...
Pàgina 480 - A number of international congresses on the applications of electricity having been held towards the end of the last century and at the beginning of the present...
Pàgina 212 - Pouillet, the quantity of heat given out by the sun in a year is equal to that which would be produced by the combustion of a stratum of coal seventeen miles in thickness...
Pàgina 269 - Pouillet, from experiments made by means of an apparatus which he calls a pyroheliometer, has calculated that if the total quantity of heat which the earth receives from the sun in the course of a year were...
Pàgina 87 - Hence, the weight lost or supported by the water, is the weight of a volume of water equal to that of the body immersed.
Pàgina 282 - I. The angle of reflection is equal to the angle of incidence. II. The incident and the reflected ray are both in the same plane, which is perpendicular to the reflecting surface.
Pàgina 107 - The syphon barometer has no cistern, but consists of a bent glass tube (fig. 96), one of the branches of which is much longer than the other. The longer branch, which is closed at the top, is filled with mercury as in the cistern barometer, while the shorter branch, which is open, serves as a cistern. The difference between the two levels is the height of the barometer.