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Newspaper
Winchester Evening Star
Location
Winchester, Virginia, United States of America
Date
Mar 03, 1949
Page
8
A roundup of new devices includes a heat free inhaler vaporizer aiding throat relief with a cotton pad method and dual nasal tips. A door knocker chimes through the house, a television magnifier enlarges seven inch tube images, and swing up sunglasses serve as visors. Also listed are a cheap fire extinguisher, an anti fog eyeglass cleaner, and an odorless germicide for sanitation with home use guidance in Gadget Bulletin 447.
Science Service describes PM pulse modulation sending voices by rapid sampling at about 8000 times per second. PCM uses coded pulse patterns to convey sample information, enabling clear interference free long distance messages with rapid cycling of voices and reconstruction of the original wave.
The U S Bureau of Mines and Alabama Power Co test underground coal burning at Gorgas Alabama to gasify thin coal seams for boiler fuel and synthetic fuels. Trials began in 1947 with 3 foot seams 30 feet deep and move to a 40 inch seam 100 feet deep using air pressurization and oxygen blends to improve gas quality for heating power and chemical feedstocks.
Dr I L Thomson of Carter Observatory suggests that without telescopes many sun facts would emerge from pinhole images. He cites sunspots seen in tree shade crescents and in a wool store roof vent, with drawings matching telescope data on spots and solar rotation.
The article guides a hobby of snow crystal study using a lens and dark cloth. It notes to indoors study with Formvar prints by Dr Vincent Schaefer, showing six pointed patterns vary, never duplicate, and reflect formation height and temperature.
Canadian National Research Laboratories in Ottawa report a protective grease containing aluminum chromium and zinc compounds defeats bolt corrosion. In 10 week sea water testing bolts in steel plates with the grease remained loosened by hand, outperforming light machine oil and lubricating oil. The mix includes 2 percent zinc chromate 1 percent aluminum stearate stearic acid graphite and petroleum distillate.
A simple modern light for stair illumination made from a square tin can and a preserve jar. It describes cutting, drilling, and attaching a porcelain socket, bottle cap, and reflector inserts to create a wall or step light with easy bulb replacement.
A simple rapid test measures individual plasma proteins from two blood drops to aid diagnosing liver diseases and tuberculosis. Conducted in basic settings, the method uses sodium sulfate and diatomaceous earth to separate proteins and ultraviolet light to indicate protein levels. High fibrinogen could signal lung disorders like tuberculosis.
English researchers led by Donald Hockenhull at Manchester College of Technology found detergents or wetting agents generally reduce liver enzyme activity across several agents and concentrations. This suggests enzymes use differing processes and may alter reactions in biological systems.
A new gallstone detector using a piezo electric sensor and amplified sound helps surgeons locate tiny stones in the common bile duct. Developed by Dr. Eric A. Walker and E. G. Thurston at Penn State for Dr. C. K. Kirby, it will be marketed to reach many patients and may inspire kidney stone devices.
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