The London, Edinburgh and Dublin Philosophical Magazine and Journal of ScienceTaylor & Francis, 1899 |
Contents
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Common terms and phrases
achromatism alcohol aluminium foil amalgam apparatus axis B.W. Readg B₁ B₂ bands bridge-wire centim charge circuit Coil cor comparison condenser constant copper critical point curve deflexion density determined diameter discharge disks distance effect elastic electric electromotive force equation ethane ether experiments formula galvanometer give glass heat Hence hydrometer hysteretic increase induction insulated ions J. J. Thomson limestone liquid Lord Kelvin Lower plate magnetic force maximum means measured mercury metals method methyl alcohol mica millimetres mixtures molecules negative observed obtained oxide phenomena Phil plait-point plane platinum platinum thermometer position potential pressure quartz quartz fibre reflexion refraction resistance ring rocks scale selenite shown solution spark surface TABLE Temp temperature thermometer Thorium Thorium Oxide three phases tube vapour velocity volts wave wire Zero cor zinc zinc plate δλ
Popular passages
Page 160 - It has the peculiarity that the composition of the vapour is the same as that of the liquids at their critical point.
Page 45 - It is not improbable that the surface waves here investigated play an important part in earthquakes, and in the collision of elastic solids. Diverging in two dimensions only, they must acquire at a great distance from the source a continually increasing preponderance.
Page 45 - ... the behaviour of waves upon the plane free surface of an infinite homogeneous isotropic elastic solid, their character being such that a disturbance is confined to a superficial region of thickness comparable with the wave-length. The case is thus analogous to that of deep water waves, only that the potential energy here depends upon elastic resilience instead of upon gravity.
Page 539 - I will call corpuscles; these corpuscles are equal to each other; the mass of a corpuscle is the mass of the negative ion in a gas at low pressure, ie about 8 x 10~26 of a gramme. In the normal atom, this assemblage of corpuscles forms a system which is electrically neutral. Though the individual corpuscles behave like negative ions, yet when they are assembled in a neutral atom the negative effect is balanced by something which causes the space through which...
Page 126 - Assuming the preponderance of this term, this means that in the neighbourhood of this value we pass from a greater value on the inner parts to a less value on the outer, than would correspond to a uniform distribution throughout the wire. From general reasoning it seems clear that if we think of a rapidly damped disturbance propagated into a wire from its boundary ; and if the alternations are slow enough to allow the currents to penetrate to the core, we should expect to find an axial concentration...
Page 539 - the atom as containing a large number of smaller bodies," which he calls "corpuscles," and these are equal to one another. "In the normal atom this assemblage of corpuscles forms a system which is electrically neutral.
Page 436 - Attempts have been made to infer the parallax of binary systems from a spectroscopie determination of the difference of velocity in the line of sight of the constituent stars, combined with the known periodic time and the apparent angular size and form of the system. This method has been applied to y...
Page 200 - ... slowly lowered (one end resting on the bottom of the dish) until the rectangular piece detaches itself and floats freely on the surface. The edges of the tank are well greased, and then lowered carefully upon the film, to which they will adhere. The whole must then be lifted from the water in an oblique direction, when the film will be found covering the tank and exhibiting the most beautiful interference colors.
Page 522 - Ann. xli. p. 166) have shown that the rate of escape of the negative electrification at low pressures is much diminished by magnetic force if the lines of magnetic force are at right angles to the lines of electric force. Let us consider what effect a magnetic force would have on the motion of a negatively electrified particle. Let the electric force be uniform and parallel to the axis of as, while the magnetic force is also uniform and parallel to the axis of z.
Page 214 - ... of its ring to the lines of force. The gyrostatic influence will split each of our six fundamental modes of vibration into two, greater than it and less than it by equal very small differences. These differences will be different for different molecules, because of the different values of 6 for their different orientations. Hence each bright line is not split into two sharp lines, but is broadened to an extreme breadth corresponding to the value 0 = 0.