"Conductivity" Quotes from Famous Books
... was discovered by Edison that carbon possesses a peculiarly great property of varying its resistance under pressure. Professor David E. Hughes discovered that two conducting bodies, preferably of rather poor conductivity, when laid together so as to form a loose contact between them, possessed, in remarkable degree, the ability to vary the resistance of the path through them when subject to such vibrations as would alter the intimacy of contact. He ... — Cyclopedia of Telephony & Telegraphy Vol. 1 - A General Reference Work on Telephony, etc. etc. • Kempster Miller
... London playhouses at the first night: on these occasions there are too many discordant elements. Most of the critics form non-conductors to the passage of what has been regarded as analogous to an electrical current, and their non-conductivity is very little greater than that of many of the people who receive complimentary tickets or have the honour of being on the first-night list. Perhaps the general public is unaware that the more fashionable theatres have a list of people to whom is accorded a preferential allotment ... — Our Stage and Its Critics • "E.F.S." of "The Westminster Gazette"
... series of V-shaped glass troughs, fitted in a frame within each other with a small space between them, which is lightly packed with asbestos fiber. Another important feature of the apparatus is a compound anode which consists of carbon plates, with a metal core to increase the conductivity. The anode is treated in a special manner so as to render it non-porous and impervious to attack by the nascent chlorine evolved on its surface. No anode appears ever to have been invented that is at all suitable for working on a large scale, and the successful introduction of this ... — Scientific American Supplement, No. 841, February 13, 1892 • Various
... this use is almost unlimited. The contacts of the Herz apparatus are now being made of conducting bodies (metals for example) reduced to powder and conglomerated by chemical means with a sort of non-conductive cement. The proportion of the elements depends upon the conductivity of the materials employed, and it alone determines the microphonic value of the compound, the nature of the elements apparently having scarcely ... — Scientific American Supplement, No. 312, December 24, 1881 • Various
... Fig. 5, into which the lugs are burned when the battery is assembled. The straps are provided with posts, to which the intercell connectors and terminal connectors are attached. The vertical ribs of the grids extend through the plate, providing mechanical strength and conductivity, while the small horizontal ribs are at the surface and in staggered relation on opposite faces. Both the outside frames and the vertical ribs are reinforced near the lug, where the greatest amount of current ... — The Automobile Storage Battery - Its Care And Repair • O. A. Witte
... increasing childish petulance seemed to give expression to their imperceptible estrangement. Like two faces looking at one another through a sheet of glass they were close together, almost touching, but they could not hear or feel each other: the conductivity between them was broken. She, at least, had this sense of separation, and she fancied sometimes that she saw it reflected in the look with which he supplemented his failing words. Doubtless the fault was hers. She was too impenetrably healthy to be touched by the irrelevancies of disease. ... — The Greater Inclination • Edith Wharton
... 9 shows the relative conductivity (reciprocal of resistance) of all the strengths of sulphuric acid solutions, and by its aid and the figures in the preceding table, the specific resistance of any given strength can ... — Project Gutenberg Encyclopedia
... between the two. Lectures on the kinetic theory of gases should have a parallel course in which the classical experiments of the senior heat laboratory are performed,—such experiments, for example, as vapor density, resistance and thermocouple pyrometry, bomb calorimetry viscosity, molecular conductivity, freezing and boiling points, recalescence, etc. A course of advanced electrical measurements should have a parallel lecture course in which the theoretical aspects of electromagnetism, the classical theories, and the equations that represent transitory and ... — College Teaching - Studies in Methods of Teaching in the College • Paul Klapper |