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This newspaper page contains 9 articles. Subscribers can read the full text of each article.
Newspaper
Winchester Evening Star
Location
Winchester, Virginia, United States of America
Date
Apr 05, 1949
Page
10
A roundup of new devices including a molded one piece plastic chair with steel legs a animal repellent stake with an odorizing chemical glowless mobile fluorescent lamp powered by shaking a needle threader for the blind glove compartment light with road use and reflective warning fire resistant window shades extendable table feet ash tray lamp and instructions to request Gadget Bulletin 460 from Science Service Washington DC.
Electrets act as a permanent electric field source like a magnet or battery but rely on a wax material. When soft charges move. as the wax hardens in a strong field, charges become fixed with positive and negative surfaces. Scientists explore potential uses of this unusual device.
A CHEMISTRY Magazine article explores fluorocarbons as potential nonflammable lubricants. It explains fluorine chemistry, fluorocarbon production from hydrocarbons, and the need for safer engine lubricants amid rising jet propulsion temperatures.
A quick guide to building a flower trellis or fan starting from scratch. It explains sizes from foot-tall to five to ten feet, material choices, and a two-stage process of shaping and painting or staining laths. The method includes using a one-piece top, carriage bolts, and decorative cross pieces.
Dr W E Hanford of M W Kellogg Co described fluorine and its compounds at an Office of Naval Research conference in Washington. He cited acetic acid fluorine compound 1080 as highly poisonous, freons as near zero toxicity, and noted fluorine materials’ low solvent solubility, high temperature stability, and potential uses in plastics, lubricants, and fluorine handling apparatus.
The piece explains that most spring blooms and new leaves come from stored food and buds formed in the previous season. It contrasts traditional adages and describes preformation in perennials and flowering shrubs, noting how bulbs and branches are forced for early indoor displays.
Scientist H Percy Wilkins of the British Astronomical Association urges careful study of the moon’s far side and limb regions to map elusive terrain. Despite telescope ease, distinguishing distant mountains from crater walls remains challenging as the near side’s features are more familiar.
U S Department of Agriculture entomologists found no resistance to DDT in Anopheles mosquitoes after three seasons of spraying in a Mexican village. They compared sprayed and unsprayed populations to assess resistance development.
England moves forward with a large atom smasher called the bevatron at the University of Birmingham to accelerate protons or electrons to 1.3 billion eV. Two more bevatro ns planned in the United States promise even higher energies at UC and Brookhaven. Researchers aim to produce mesons and deepen cosmic ray particle study with these machines.
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