Word: tungsten
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Mechanics of the instrument are simple. The whole device weighs, with batteries, about three pounds. It transmits a steady humming signal broken every thirty seconds. A rotating cylinder, run by clockwork, makes electrical contact with Tungsten needles which move as the weather changes. The contact thus made transmits additional signals, which, are recorded on a graph at the receiving point, and from this graph, is reduced the data...
...most electrochemists Columbia University's Colin Garfield Fink is the man who found a practical way to make chromium stick to other metals by electroplating. Plump, grizzled Dr. Fink has done other valuable work electroplating with tungsten and rhenium but he worked longest and hardest with chromium. When he found that sulphate ions from ordinary sulphuric acid in his plating bath would do the trick, automobiles, kitchens and modern furniture began to take on a new appearance...
...Donovan Strong and others from a plating process first hit upon by Thomas Edison. The glass disk is first thoroughly cleaned with blasts of electrons. It is then placed in a big sealed tank from which pumps suck almost all the air. Within the tank is a coil of tungsten wire covered with aluminum. When the wire is electrically heated the aluminum boils off as a vapor which, when it strikes the mirror's cool surface, condenses in a thin, even film...
...Director Coolidge is Laureate Langmuir's boss. Precisely, Dr. Langmuir received his award for "pioneer work in surface chemistry." This refers to his useful concept of the arrangement and orientation of molecules at the surface of objects-how, for example, gases react at the surface of a hot tungsten wire. This led him directly to the invention of the gas-filled incandecent lamp which saves U. S. users of electricity, according to estimates. $1.000,000 a night. The same concept led to his creating almost complete vacuums in thermionic tubes. To do this he was obliged to design...
...Langmuir's investigation along this line led him to utilize hydrogen for welding metals together. When hydrogen is squirted through a tungsten arc light, hydrogen molecules explode into hydrogen atoms. The hot stream of atomic hydrogen can weld pieces of steel together and simultaneously drive away the oxygen and nitrogen which weaken ordinary steel welds...