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Some of the more important consumers of the electric power, named in the order of consumption, are for the manufacture of the following products: calcium carbide, aluminium, caustic soda and bleaching salt, carborundum, and graphite.
When he ran out upon the low ground the mist got thicker and rolled in low belts across the fields. The carbide in his lamps was exhausted and the feeble beam that leaped up with the jolts flickered puzzlingly. He knew where he was, however, when he reached the marsh road that ran like a causeway across the boggy ground. Tall, stiff reeds bordered the straight track.
Where a very great deal of power is needed for the making of an article or material of comparatively small weight and bulk proportioned to its value such for instance as calcium carbide or aluminium the immediate vicinity of the source of natural power will offer superlative inducements.
Fairchild pulled on the rope with enthusiastic strength, while the bucket bumped and swirled about the shaft in descent. A moment more and he had reached the bottom, to leap from the carrier, light his carbide lamp which hung where he had left it on the timbers, and start forward. The odor grew heavier.
When they gathered sluggishly about a ground-car and began to lunch on it, the colonists did not believe. But it was true. The dinies' teeth weren't mere calcium phosphate, like other beasts. An amateur chemist found out that they were an organically deposited boron carbide, which is harder than any other substance but crystallized carbon diamond.
Calcium carbide, by means of which acetylene gas is obtained as a product from water, becomes in this view stored power.
Ferrocyanide of potassium is in large beautiful transparent four-sided tabular crystals, of a lemon-yellow color, soluble in four parts of cold and two of boiling water, insoluble in alcohol. Exposed to heat it loses three eq. of water, and becomes anhydrous; at a high temperature it yields cyanide of potassium, carbide of iron, and various gases.
In this way we transported a large quantity of miscellaneous stores; first about 3 tons of coal for present use, then 2 1/2 tons of carbide, all the many stores, chimney and ventilators for the hut, all the biologists' gear a big pile, the remainder of the physicists' gear and medical stores, and many old cases; in fact a general clear up of everything except the two heavy items of forage and fuel.
We know with scientific certainty that the difference between a diamond and a piece of charcoal, or between a pearl and an oyster-shell, is the way that the particles of carbon in the one case, and of calcium carbide in the other, are arranged.
The Water Circulation. The water chamber is connected by two rubber tubes with an external tank. Two short nozzles, E1 and E2, of 1/4-inch tube are soldered into the water chamber near the top and bottom for the rubber pipes to be slipped over, and two more on the water tank. For the tank one may select a discarded 1 lb. carbide tin.
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