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Usage examples for permeability

  1. Traversing a canopy of cloud, here thicker and there thinner, a wave would cause a disturbance very unlikely to leave the thin and thick parts without any change in their average permeability to light. – Essays: Scientific, Political, & Speculative, Vol. I by Herbert Spencer
  2. Two factors seem to affect the functional contact of a synapses,- first, proximity of the neurone ends, and second, some sort of permeability which makes a current travel on one rather than another of two neurones equally near together in space. – Principles of Teaching by Adam S. Bennion
  3. I know that Madame Blavatsky, in alluding to the theory of the fourth dimension, has expressed an opinion that it is only a clumsy way of stating the idea of the entire permeability of matter, and that Mr. W. T. Stead has followed along the same lines, presenting the conception to his readers under the name of throughth. – Clairvoyance by Charles Webster Leadbeater
  4. All possible factors may play a part, such as osmotic pressure, permeability of the protoplasm, the degree of concentration of the various chemical substances, etc. – Darwin and Modern Science by A.C. Seward and Others
  5. Iron has a greater magnetic permeability than air. – The Radio Amateur's Hand Book by A. Frederick Collins
  6. The temperature of the soil is affected by:- 1. The exposure of the surface; 2. The nature of the soil; 3. Its permeability by rain, and the presence of underground springs; 4. The sun's declination; 5. The elevation above the sea, and consequently the heating power of the sun's rays: and 6, The amount of cloud and sunshine. – Himalayan Journals V2. by J. D. Hooker
  7. They are enabled to do so by the permeability of the cane in one direction, and by its capillarity. – The Chemical History Of A Candle by Michael Faraday
  8. In nature, the inclination and exposure of the ground, the degree of freedom or obstruction of the flow of water over the surface, the composition and density of the soil, the presence or absence of perforations by worms and small burrowing quadrupeds- upon which the permeability of the ground by water and its power of absorbing and retaining or transmitting moisture depend- its temperature, the dryness or saturation of the subsoil, vary at comparatively short distances; and though the precipitation upon very small geographical basins and the superficial flow from them may be estimated with an approach to precision, yet even here we have no present means of knowing how much of the water absorbed by the earth is restored to the atmosphere by evaporation, and how much carried off by infiltration or other modes of underground discharge. – The Earth as Modified by Human Action by George P. Marsh
  9. This proximity and permeability are both provided for by the structure and constitution of the nervous system. – Principles of Teaching by Adam S. Bennion
  10. Another factor that has been suggested as possibly contributing to the change, is the degree of permeability of the rocks overlying the coal to the volatile materials which escape from the coal during its refinement. – The Economic Aspect of Geology by C. K. Leith