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The first warm snows of August and September, falling on a thickly pleached carpet of grasses, heaths, and willows, enshrine the flowery growths which nestle round them in a non-conducting air-chamber; and as each successive snow increases the thickness of the cover, we have, before the intense cold of winter sets in, a light cellular bed covered by drift, six, eight, or ten feet deep, in which the plant retains its vitality. ... I have found in midwinter, in this high latitude of 78° 50', the surface so nearly moist as to be friable to the touch; and upon the ice-floes, commencing with a surface-temperature of-30°, I found at two feet deep a temperature of-8°, at four feet + 2°, and at eight feet + 26°. ... The glacier which we became so familiar with afterwards at Etah yields an uninterrupted stream throughout the year."
An attempt was made to elude the storm by rising into the higher regions of the atmosphere; but the cold there proved to be so unbearable, notwithstanding the protection afforded by the stubbornly non-conducting material of which the Flying Fish was built, that they were compelled to descend once more, and their journey was continued at about a height of one thousand feet above the ice, and at a speed of ninety miles per hour, at which rate of travel they considered that they were stemming the gale, and perhaps actually progressing to windward some ten miles or so every hour.
Business was to be done business which was to decide the failure or success of months of work, and which might affect their whole careers. Between them lay a long brown table, stained and corroded by strong acids, and littered with giant carboys, Faure's accumulators, voltaic piles, coils of wire, and great blocks of non-conducting porcelain.
An oven, for instance, may be surrounded by a "jacket" filled with ground smouldering mixture having a non-conducting insulator outside and a connection with a chimney. The heat from the fuel is thus kept in close proximity to the objects requiring to be cooked, and comparatively small waste results.
Donald sat before the pulpit and filled the hearts of nervous probationers with dismay, not because his face was critical, but because it seemed non-conducting, upon which their best passages would break like spray against a rock.
III. is a perspective view of a furnace adapted to withstand a very high temperature, and Figs. IV. and V. are respectively longitudinal and transverse sections of the same. This retort consists of a cylinder, A, made of silica or other non-conducting material, suitably embedded in a body, B, of powdered charcoal, mineral wool, or of some other material which is not a good conductor of heat.
It is conceivable that in such a way both conducting and non-conducting bodies may be maintained at a certain luminous intensity, but the energy required would very greatly vary with the nature and properties of the bodies. These and some foregoing remarks of a speculative nature were made merely to bring out curious features of alternate currents or electric impulses.
His rational part was fatally protected by a non-conducting envelope of sentiment; this intercepted clear ideas on their passage, and even cut off the direct and true impress of those objects and their relations, which are the material of clear ideas.
The photographic plate was here placed upon the non-conducting disk, P. As the sensitized film was upward, it was put in contact with the balls at the extremity of the conductors, H and N. It will be seen here again that the efflux spreads out widely at the positive pole, while it is contracted at the other. The conducting balls were spaced 0.04 inch apart.
Should farther observation establish the fact of the non-conducting quality of the American beech, great advantage may evidently be derived from planting hedge rows of such trees around the extensive barn yards in which cattle are kept, and also in disposing groups and single trees in ornamental plantations in the neighbourhood of the dwelling houses of the owners. New Monthly Magazine.
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