The Structure of Light: The Fison Memorial Lecture, 1925University Press, 1925 - 38 pages |
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Common terms and phrases
absorption bands ALFRED HENRY FISON allotropic modification area S₁ atom bright band bright spot centre circumference closed lines corpuscles corpuscular theory corresponding diffraction direction distribution of energy electric and magnetic electric force electrical waves energy flows ference of waves Fison gave FISON MEMORIAL COMMITTEE Fison Memorial Lecture Fresnel Gilchrist Educational Trust Guy's Guy's Hospital Hendon instruments which produce inversely proportional kinetic energy latent heat light waves lines of electric lines of force luminous molecule magnetic forces Maxwellian waves MEMORIAL COMMITTEE feel OPQ is longer path Planck's Law positive charge potential energy Professor Hufford properties of light quantum is equal reached the slit right angles ring moves forward Röntgen rays S₂ screen SIR J. J. THOMSON slit the energy STRUCTURE OF LIGHT suppose theory of light travel through space tube of force undulatory theory velocity of light vibrations of light visible light wave front waves of light X-rays
Popular passages
Page 3 - ... and are not these vibrations propagated from the point of incidence to great distances ? And do they not overtake the rays of light, and by overtaking them successively, do they not put them into the fits of easy reflexion and easy transmission described above ? For if the rays endeavour.
Page 15 - The position is thus ; that all optical effects point to the undulatory theory, all electrical ones to something like the corpuscular theory. The contest is something like one between a tiger and a shark. Each is supreme in its own element but helpless in that of the other.
Page 3 - And in like manner, when a Ray of Light falls upon the Surface of any pellucid Body, and is there refracted or reflected, may not Waves of Vibrations, or Tremors, be thereby excited in the refracting or reflecting Medium at the point of Incidence...
Page 20 - I suppose that these lines are not merely geometrical figments, but that they, or rather the groups of them forming tubes of force that end on an electron, are physical realities, and that the energy in the electric field is bound up with these tubes.
Page 14 - ... classical theory broke down badly. The essential feature of the new theory, which places it in direct conflict with the electromagnetic theory is that radiation is emitted and 'absorbed not continuously but in discrete units, one at a time, the amount of energy in each unit being given by the product Av, where h is a constant now universally known as Planck's constant and v the frequency of the radiation. QUANTUM THEORY OF RADIATION LIGHT QUANTA OR PHOTONS The new ideas introduced by Planck about...