New Gadgets and Tools Featured in Science Service Bulletin
A collage of new devices includes a resin caulking for tub seals, durable polyethylene eyeglass case, high heat aluminum radiator screen with a two‑way brush, a tree pulling attachment for tractors, tubular steel cable reel with sled runners, a bottle and flask cleaning brush with adjustable angle, a nylon bristle bottle brush, a color analyzer for medical research, and a note to request Gadget Bulletin 431 by mailing a three cent stamp to Science Service.
MENTIONED IN THIS ARTICLE
Science Service
N St
N. W
Washington, D. C
Potting Plants For Winter Indoor Pots
When potting up houseplants for winter keep soil light. Leave a half inch rim at the top and ensure drainage with a bottom layer of coarse gravel or broken shards, then a layer of sand before placing the plant and firming the soil.
Science Fairs and Clubs Foster Tomorrow's Scientists
A 1948 overview explains how science fairs and Science Clubs of America engage youths from grade school to high school. It notes projects range from optics and space concepts to chemistry and biology and highlight the role of schools, newspapers, and sponsors in showcasing and rewarding young investigators.
MENTIONED IN THIS ARTICLE
Science Clubs of America
St. Louis
Science Service
Science Club
National Science Clubs of America
Westinghouse
Science Talent Institute
Washington
America
Paul Condon
Joe
Washington, D. C
Edward A. Condon
National Bureau of Standards
X rays and cathode rays sterilize foods findings from MIT scientists
MIT researchers report that X rays and cathode rays sterilize bacteria in milk soils and waters while affecting vitamins and fats. Milk samples dropped from about 37 million bacteria per milliliter to two after irradiation.
MENTIONED IN THIS ARTICLE
Massachusetts Institute of Technology
J.G. Trump
R.J. van de Graaff
Cecil G. Dunn
William L. Campbell
Harvey Fram
Ardelia Hutchins
Journal of Applied Physics
American Institute of Physics
Crystals With Holes May Boost Electrical and Mechanical Properties
M. E. Straumanis of the University of Missouri told an international crystallography congress that crystals with missing atoms conduct electricity better than ideal crystals while extra atoms between lattice points can strengthen metals. He described methods to detect deviations from the ideal atom count by molecular weight. Silver, copper, iron, lead and tellurium often have ideal crystal structures.
MENTIONED IN THIS ARTICLE
M. E. Straumanis
University of Missouri School of Mines
Rolla
International Congress of Crystallographers
Simple trap siphon guide for safe practical use
Junior Scientists Avoid Getting a Mouthful When Starting a Syphon explains a homemade two-tube trap using a test tube or milk bottle to prevent sucking dirty liquids. It describes assembly with paper cap stoppers, drinking straws, and candle tallow, plus steps to start and stop flow for siphoning gasoline, wash water, auto oil, and aquarium liquids.
MENTIONED IN THIS ARTICLE
Science Service
Pluck Molting Rabbits For Best Wool Is Advice
A U S Department of Agriculture study from Beltsville shows plucking Angora rabbits during molt yields the highest share of top quality wool about 55 percent No 1 grade, compared with 35 percent for 10 week clipping and higher irregular growth. Breeders may still clip or shear for speed or harvest on a 10 week schedule.
MENTIONED IN THIS ARTICLE
U. S. Department of Agriculture
Beltsville
Thora Plitt Hardy
Ethel H. Dolnick
Bureau of Animal Industry
Also Mentioned on This Page
By Science Service
Heros Fountain
Mars
American Institute of the City of
New York
N.W
Washington, D.C
Joseph H. Kraus
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