The London, Edinburgh and Dublin Philosophical Magazine and Journal of ScienceTaylor & Francis, 1914 - English periodicals |
Contents
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Common terms and phrases
absorption actinium active deposit aluminium angle anode apparatus approximately atomic weight axis calculated carbon cathode cent CH₂ charge coefficient coil constant corresponding crystal curve decrease deflexion determined diameter direction discharge distance effect electric field electrometer electrons electroscope elements emanation emission energy equal equation Ernest Rutherford experimental experiments films flicker force formula frequency galvanometer gases given gives heating hydrogen increase ionization ionization potential ions J. J. Thomson lines liquid magnetic field maximum measured metal method molecules motion negative observed obtained paper Phil photoelectric effect Phys plane platinum positive potential pressure produced quantity radiation radium ratio rays from radium reflexion Rutherford shown solution spectra spectrum speed string substance surface temperature theory thermionic current thorium tube velocity volts volume wave-length waves wire zero
Popular passages
Page 76 - Whoever rejects faith in the reality of atoms and electrons, or the electromagnetic nature of Light-waves, or the identity of Heat and Motion, can never be found guilty of a logical or empirical contradiction, but he will find it difficult from his standpoint to advance Physical knowledge.
Page 635 - when N is the number of electrons per unit volume, e and m are respectively the charge and mass of an electron. This relation applies when the wave-length is
Page 634 - a magnet was placed between the target and photographic plate, so as to deflect the corpuscular radiation from the plate; this did not affect the photographs. The second method was to place between the target and the photographic plate a pair of parallel plates similar to those used in the first experiment with positive
Page 71 - according to the principle of the Constancy of the Velocity of Light, it is clear that those stations which, seen from the central .station, lie in the direction of the earth's motion,
Page 619 - The most general conclusion may be thus stated. The steady motion of a non-viscous liquid in two dimensions between fixed parallel plane walls is stable provided that the velocity U, everywhere parallel to the walls and a function of y only, is such that
Page 634 - collodion, mica, glass, or fluorite so as to estimate the penetrating power of the radiation. A magnet was placed between the target and photographic plate so as to deflect from the latter any corpuscular radiation from the target. The vacuum was made as low as possible by means of charcoal and liquid air; it was so low that no luminosity
Page 595 - This maintenance of a uniform distribution means that there is no tendency for the points to crowd into any particular region of the generalized space, and hence if we start some one system going and plot its state in our generalized
Page 634 - potential difference of 1000 volts. The intensity of the photographs was not diminished when all the radiation which struck the plate had passed through this strong electric field, which would have stopped any charged particles.
Page 594 - space. Suppose now we had a large number of systems of the same structure but differing in state, then for each system we should have at any instant a corresponding point in our