Word: smalling
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Dates: during 1920-1929
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...many weeks past small bombs have been bursting under assorted public buildings in Schleswig-Holstein and North Prussia. Three weeks ago another bomb, the eleventh in the series, burst noisily in the cellar of the German Reichstag at 4 a. m.. breaking many windows. Spurred by offers of a $15,000 reward, German police concentrated on the bombings...
...approaching the goal as they listened to metallurgical discourses of the National Metal Congress held last week at Cleveland, the Foundry City.* Manganese-Molybdenum Steel. Hard and sharp were the Samurai swords of Japan, the Toledo blades of Spain, the Damascus cutlery of the Levant-because their steels contained small amounts of molybdenum. However, the presence of molybdenum was accident. Mineralogists did not recognize it as a metal until the 1790's. Metallurgists did not introduce its hardening properties to a steel alloy until very recently. Pure iron is a relatively soft metal. A little carbon added yields hard...
Metallic Gas. "It may be possible to run the automobile of the future on a gas of great power and volume produced by a handful of a peculiar metal and a small tank of peculiar gas." dreamily predicted Chicago's Robert G. Guthrie, nominated to succeed Cleveland's Zay Jeffries as President of the American Society for Steel Treating, sponsors of the Congress. Mr. Guthrie's prediction followed his exposition on special furnaces in which gases are used to surface steel. Metals absorb gases, a phenomenon only now being put to industrial use. Konel Metal. News...
...Konel metal is not to be confused with monel metal, a copper-nickel alloy (plus small amounts of iron, carbon, manganese, silicon) developed in 1905. Monel metal is relatively soft, is valuable for its corrosion-resisting properties...
...kinds of hydrogen molecules. Around a glass tube filled with charcoal he poured liquid hydrogen which cooled the charcoal to almost absolute zero. Then through the frozen charcoal he pumped ordinary hydrogen which, as it poured out of the tube, passed over a wire heated to incandescence. A small mirror reflected a beam of light on a screen. As the treated hydrogen struck the glowing wire it interfered with the light and caused the mirror beam to move in one direction. That done, Dr. Bonhoeffer passed untreated hydrogen over the same wire. The mirror beam moved differently. That was proof...