Word: alloys
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Dates: during 1930-1939
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...copper alloy supposedly as hard as steel...
...university's Rockefeller-endowed Oriental Institute started digging there in 1925. The diggers found the palace of the Egyptian princes with a gaudily painted court and a washroom paved with seashells; a rich hoard of art objects in gold, ivory, lapis lazuli and electrum (gold-silver alloy); an inscription of the Pharaoh Shishak who plundered Jerusalem; and stables built by King Solomon large enough to house 300 horses...
There still remain forty metal groups whose alloy characteristics have yet to be studied, and whose possible industrial application is still in its infancy. Their development may mean as much to industry as the relatively recent development of such alloys as stainless steel, or tungsten carbide used in high speed machinery...
...years and includes the best facilities obtainable for its purposes both in instruction and research. For instance, the laboratory possesses one of the best and most recently developed metallographic microscopes. The X-ray apparatus is of the latest design and the facilities for the preparation and heat treatment of alloy samples are unusually good...
When the new Pullmans take the road around the beginning of the year they will have four-wheel instead of six-wheel trucks. Four-wheel trucks are made possible by improved design and the use of lighter materials throughout. By using high tensile alloy steel, weight of the car has been cut from 180,000 Ib. to around 120,000 Ib. Complete welding of the sides removes all rivet heads and joints, makes them stronger and sleeker. Between cars are semi-articulated sections, and aprons between trucks conceal the car's mechanical equipment. More innovations: flush windows, entrance steps...