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They showed further from evidence independent of that obtained by Young in 1892 the remarkable conspicuousness in spot-spectra of vanadium lines excessively faint in the Fraunhofer spectrum. Lockyer's "unknown lines" may probably thus be accounted for. They represent absorption, not by new, but by scarce elements, especially, Father Cortie thinks, those with atomic weights of about 50.
Then to stem the tide of her impending protest, he broke his studious silence. "I'm looking for molybdenum," he went on quickly, "and some of these other rare metals that are in demand on account of the war. Ever find any vanadium or manganese around here? No, I guess they're all further north." He returned to his meal and the Widow surveyed him appraisingly with her bold, inquisitive eyes.
We, for the first time I think, in the history of any large construction, determined scientifically the exact quality of the steel. As a result we then selected twenty different types of steel for the various steel parts. About ten of these were vanadium. Vanadium was used wherever strength and lightness were required. Of course they are not all the same kind of vanadium steel.
"That is the kind of material we ought to have in our cars." He found eventually that it was a French steel and that there was vanadium in it. We tried every steel maker in America not one could make vanadium steel. I sent to England for a man who understood how to make the steel commercially. The next thing was to get a plant to turn it out. That was another problem.
The marmots are splendid prospectors, always digging deep ditches, throwing out on the surface all the stones. In many places I saw mounds the marmots had made from copper ore and farther north some from minerals containing wolfram and vanadium. Whenever the marmot is at the entrance of his hole, he sits up straight on his hind legs and looks like a bit of wood, a small stump or a stone.
The volcanoes we shot three months ago yielded a fine flow of lava with all sorts of metals nickel, beryllium, vanadium, chromium, iridium, as well as copper and iron." "What sort of gas were you speaking about?" she asked. "Hydrogen. That's what's going to make the fireworks; it combines explosively with fluorine.
In 1910 the French Department of Commerce and Industry took one of our steering spindle connecting rod yokes selecting it as a vital unit and tried it against a similar part from what they considered the best French car, and in every test our steel proved the stronger. The vanadium steel disposed of much of the weight.
"By all means." The plant was a row of long low buildings of brick on the outskirts of the city, once devoted to the making of vanadium steel. The ore, as Denison explained, was brought to Pittsburgh because he had found here already a factory which could readily be turned into a plant for the extraction of radium.
In this make the cylinders were secured to the crank case by means of four long tie bolts passing through bridge pieces arranged across the cylinder heads, thus relieving the cylinder walls of all longitudinal explosion stresses. These bridge pieces were formed from chrome vanadium steel and milled to an 'H' section, and the bearings for the valve-tappet were forged solid with them.
Also we do not want to be held up in production or have the expense of production increased by any possible shortage in a particular material, so we have for most parts worked out substitute materials. Vanadium steel, for instance, is our principal steel.
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