Word: vaporous
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Steady Flow. This is the job that has been taken over by the big steel cylinders, otherwise known as mercury-arc valves. Perfected for high-voltage use by Dr. Uno Lamm of Sweden's ASEA company, they are filled with hot mercury vapor and act like instantaneous switches. High-voltage AC from step-up transformers runs into them, and whenever the current changes its direction, it is switched to the opposite pole of a DC transmission line. A bank of valves switching in unison produces a steady flow of current...
...transmission line, the same valves are used in a different hookup. The current flowing through their mercury vapor is stopped and started by a control-voltage applied to a grid. This second switching produces alternating current that can be fed into transformers and reduced to the low voltages needed by the customers...
...exhaust-laden air is trapped in the mountain-rimmed Los Angeles basin, the bright Southern California sunshine, which could be expected to burn off a simple, old-fashioned fog, goes to work on the invisible gases until a giant photochemical reaction takes place. The pallid, evil-smelling vapor that results is known as smog...
...jetliner and flew high over Canada during last summer's eclipse, Drs. Guglielmo Righini of Italy and Armin J. Deutsch of the U.S. counted on snapping some of the clearest pictures yet of the sun's glowing corona. But up there above the dust, water vapor and other difficulties of the earth's atmosphere, the two astronomers told the Florence meeting of COSPAR (Committee on Space Research), they found far more than they expected. Their pictures of the sun's spectrum showed a strange line that had not been predicted by any of their calculations...
...closed network of pipes; but in the process of giving up heat much of it condenses to distilled water. This condensate is collected and pumped (through a small pipe on the floor of the Tunnel) back to the Western Avenue power plant where it is again converted to superheated vapor...