Word: tungsten
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...return for exports to Spain, the U.S. receives substantial amounts of strategic materials, most important of which are wolfram (for tungsten) and cork...
...poured out would have been only fluttering banknotes had it not been for the fundamental strength of U.S. industry. Not dollars, but tanks, guns, planes and, above all, ships and the means of transportation were what counted. And these were not made of money. They were made of steel, tungsten, aluminum. They were fashioned by manual and managerial skills which, whether planted at Detroit or Fisherman's Lake, Liberia-whether in civvies or in uniform-were still the American productive genius at work...
...conclusion to German experiments with ionized air, found a clue to cleaner air. With a wire, a couple of aluminum plates and a burning oily rag, he rigged his first crude electrostatic dirt trap. The modern unit is as simple in principle: air entering it travels over fine tungsten wires carrying 12,000 volts which impart a positive charge to passing particles of dust. Then parallel steel plates charged with negative electricity snatch and hold the electrified particles, removing from them 95% of the airborne dirt...
...counts upon Mexico for 45% of its requirements of graphite, 33% of its antimony, 40% of its sisal and henequen, 19% of its lead, a growing portion of its lumber (particularly mahogany, for plywood planes), plus important fractions of its needs for molybdenum, mercury, cobalt, manganese, mica, tungsten, tin, vanadium. This year Mexico will ship the U.S. some 400,000 tons of these metals alone; next year the figure should rise to nearly 2,000,000 tons...
...choke is in alloy steels (for armor plate and many a vital part in war machines). The Government now wishes that it had taken his advice two years ago, when he foresaw the raw-material shortages now plaguing the U.S. Then he urged stocking up on nickel, chrome and tungsten, suggested substitution of molybdenum for tungsten alloys, and other steps which, had they been taken, would be godsends...