The London, Edinburgh and Dublin Philosophical Magazine and Journal of Science

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Taylor & Francis, 1921 - Physics
 

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Page 866 - B with the sound velocity where y is the ratio of the specific heat at constant pressure to the specific heat at constant volume, and p is the gas pressure.
Page 321 - N is the atomic density, e and m are the charge and mass of the electron, respectively, A is the mean free path and < v > is the average agitation velocity of the electrons.
Page 287 - I a«sume that the origin of luminous vision and of •colour vision is to be sought in the liberation of electrons •under light stimulus within a photoelectric substance or substances existing in the retina. The rhodopsin is such a photosensitive substance. In the case of the rods (in which rhodopsin is found) this substance acts as the basis of vision. In the case of the cones the same substance is very probably responsible. A strong argument for this view is to be found in the fact that in the...
Page 759 - C is the velocity of light, and 0 is the angle between the direction of motion of the particle and the observed beam.
Page 287 - If this view is correct, the changes in the retina are identical with those which take place in a phosphorescent substance or with those which take place in the formation of a latent image on the photographic plate.
Page 299 - The red is a rich crimson red, decidedly less orange than the red of the solar spectrum, the blue is a rich ultramarine, and the green a pure green having no inclination towards blue or yellow...
Page 150 - ... the mathematical theory of Probabilities] must come to the conclusion that continued collisions among our set of elastic spheres will, provided they are all equal, produce a state of things in which the percentage of the whole which have at each moment any distinctive property must (after many collisions) tend towards a definite numerical value...
Page 843 - VI. On a Practical Theory of Elliptic and Pseudo-elliptic Arches, with special reference to the ideal Masonry Arch. By K. PEARSON, FRS, WD REYNoLDS, B.SC. and WF STANTON, B.SC. 6s. VII. On the Torsion resulting from Flexure in Prisms with Cross-Sections of Uni-Axial Symmetry only.
Page 191 - From which it is concluded that in 67.7 times out of 100 we should get in random sampling a fit as bad, or worse than that observed if the real distribution was normal.
Page 185 - But it would require a very much greater number of observers than 79 to positively disprove the existence of separate maxima for the dichromats...

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