Heat : a Mode of MotionD. Appleton, 1881 - 591 pàgines |
Altres edicions - Mostra-ho tot
Frases i termes més freqüents
absorbed absorption Acetic ether action amount of heat Amylene aqueous vapor atmosphere atoms augmented beam bismuth bisulphide of carbon body calorescence calorific carbonic acid cause chilled Chloroform cloud cold color combustion condensation copper cube cylinder deflection degrees diathermic distance earth effect electric lamp emitted energy expand experiment experimental tube feet flame flask focus force friction galvanometer gases glass heat-rays hence hydrogen inch intercepted invisible invisible rays Iodide iodine John Herschel Joule lamp-black liquid luminous matter mechanical Melloni mercury metal molecular molecules motion moves needle nitrite of amyl observed obtained olefiant gas oxygen particles pass placed plate platinum polarization pressure produced quantity of heat radiant heat radiation raise rays rock-salt screen sensible solar solid source of heat space spectrum spiral substance Sulphuric Sulphuric ether surface temperature thermo-electric pile thermometer thickness tion transparent velocity vessel vibrations visible waves weight wire
Passatges populars
Pàgina 338 - 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. The warmth of our fields and gardens would pour itself unrequited into space, and the sun would rise upon an island held fast in the iron grip of frost.
Pàgina 448 - The sun's rays are the ultimate source of almost every motion which takes place on the surface of the earth. By its heat are produced all winds, and those disturbances in the electric equilibrium of the atmosphere which give rise to the phenomena of lightning, and probably also to those of terrestrial magnetism and the aurora.
Pàgina 84 - Heat, then, or that power which prevents the actual contact of the corpuscles of bodies, and which is the cause of our peculiar sensations of heat and cold, may be defined a peculiar motion, probably a vibration of the corpuscles- of bodies, tending to separate them.
Pàgina 86 - ... the particles move round their own axes, and separate from each other, penetrating in right lines through space. Temperature may be conceived to depend upon the velocities of the vibrations; increase of capacity on the motion being performed in greater space ; and the diminution of temperature during the conversion of solids into fluids or gases, may be explained on the idea of the loss of vibratory motion, in consequence of the revolution of particles round their axes, at the moment when the...
Pàgina 85 - 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.
Pàgina 6 - It would be difficult to describe the surprise and astonishment expressed in the countenances of the bystanders, on seeing so large a quantity of cold water heated, and actually made to boil, without any fire.
Pàgina 48 - It is hardly necessary to add, that anything which any insulated body, or system of bodies, can continue to furnish without limitation, cannot possibly be a material substance ; and it appears to me to be extremely difficult, if not quite impossible, to form any distinct idea of anything capable of being excited and communicated in the manner the Heat was excited and communicated in these experiments, except it be MOTION.
Pàgina 527 - SOUND: a Course of Eight Lectures delivered at the Royal Institution of Great Britain.
Pàgina 528 - Cloth, $1.25. THE VARIOUS CONTRIVANCES BY WHICH ORCHIDS ARE FERTILIZED BY INSECTS. Revised edition, with Illustrations.
Pàgina 356 - Supposing waves of any period to impinge upon an assemblage of molecules of any other period, it is, I think, physically certain that a tremor of greater or less intensity will be set up among the molecules ; but for the motion to accumulate, so as to produce sensible absorption, coincidence of period is necessary.