Word: quartz
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...Given adequate stock piles of tin, high-grade mica, radio quartz, industrial diamonds, and a half-dozen deficient ferroalloying minerals and certain tropical plant materials, we could be virtually independent of overseas imports for years at a time," Mr. Tyler said...
Basic Materials: Aluminum, antimony, asbestos, chromium, cotton linters, flax, graphite, hides, industrial diamonds, manganese, magnesium, manila fibre, mercury, mica, molybdenum, optical glass, platinum group metals, quartz crystals, quinine, rubber, silk, tin, toluol (coal-tar derivative used in TNT), tungsten, vanadium, wool...
Principle of the Knott Hemo-Irradiator is simple. A small amount of blood (two cubic centimetres per pound of body weight) is withdrawn from a vein in the arm, mixed with citrate to prevent clotting. The citrated blood is passed through a rubber tube into a small, round quartz and steel irradiation chamber. Against the quartz window the doctor fits a lamp, like a flashlight, which emanates ultraviolet rays. An automatic shutter turns the lamp off every few seconds to prevent over-irradiation. Length of irradiation varies from nine to 14 seconds, depending upon the severity of the infection. Once...
...solids begin to glow at 525° C. But many other agencies besides heat can produce light-rubbing, fracture, pounding, excitation by electricity or short-wave radiation, etc. Surgeon's tape emits a greenish glow when stripped from a roll. Lumps of sugar luminesce when rubbed together. Quartz pebbles shine when struck by a hammer...
More recently he has conducted research in the field of high-frequency oscillation, developing the quartz crystal oscillator used by radio stations to fix transmission frequencies. He has also applied his researches on high frequencies to supersonic sounds of nature, studying the extremely high notes of insects, beyond the range of human hearing...