Elementary Treatise on Physics Experimental and Applied for the Use of Colleges and Schools

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W. Wood and Company, 1881 - Physics - 972 pages
 

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Page 50 - Every particle of matter, in the universe, attracts every other particle with a force, which is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
Page 124 - ... hence it follows, that the pressure of the atmosphere is equal to that of a column of mercury, the height of which is thirty inches.
Page 781 - Towards the end of the last century, and at the beginning of the present...
Page 94 - The weight of the body is either totally or partially overcome by its buoyancy, by which it is concluded that a body immersed in a liquid loses a part of its weight equal to the weight of the displaced liquid.
Page 900 - Remove for a single summer-night the aqueous vapour from the air which overspreads this country, and you would assuredly destroy every plant capable of being destroyed by a freezing temperature.
Page 81 - The pressure per unit of area exerted anywhere upon a mass of liquid is transmitted undiminished in all directions, and acts with the same force upon all surfaces, in a direction at right angles to those surfaces.
Page 140 - Law. — The temperature remaining the same, the volume of a given quantity of gas varies inversely as the pressure.
Page 53 - A body is said to be in stable equilibrium if it tends to return to its first position after the equilibrium has been slightly disturbed. Every body is in this state when its position is such that the slightest alteration of the same elevates its centre of gravity ; for the centre of gravity will descend again when permitted, and after a few oscillations the body will return to its original position. The pendulum of a clock...
Page 381 - 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.
Page 750 - The quantity of a body decomposed in a given time is proportional to the strength of the current.

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