New Machines and Gadgets for Army Air Corps
Army Airforce Materiel Command refines shawls for bomber crew protection and introduces tri alloy bearings for engines. A decimal slide rule aids complex calculations, a ground parallel circular power saw, glass lined blankets for plane insulation, a hydrodrilling machine for engine components, and a new multi weaving method create stronger materials. Boat portage via wheel and paddle slots improves handling. For more info send a 3 cent stamp to Sol Service, 1719 N St NW, Washington DC for Bulletin 243.
MENTIONED IN THIS ARTICLE
Sole Service
N St
N. W
Washington, D. C
Jet propulsion and its postwar potential for speed
Science Service outlines how jet propelled aircraft eliminate propellers, boosting speeds from 30 mph in 1903 to 550 mph, enabling six hour trips coast to coast and opening a range of postwar uses from lawnmowers to trains. It explains jet engine principles, materials challenges, and future applications.
MENTIONED IN THIS ARTICLE
New York
Pacific Coast
Wright Brothers
Kitty Hawk
Sands
England
Germany
Italy
France
United States
Galileo
Isaac Newton
Science Service
Tiny water powered balance motor from blotting paper
A simple junior science project uses a wooden beam with blotting paper ends and two water wicks to create an oscillating balance. Evaporation drives movement, frequency reflecting humidity, with setup tips, variants, and maintenance.
Winter Guests By Science Service
When discussing birds that migrate south for winter we mean those that spend the season in our neighborhood. Some hardy species from the north also come south to us including chickadees nuthatches and juncos that nest in Canada and become our winter visitors.
MENTIONED IN THIS ARTICLE
Science Service
Iada
Hardihood
Wilson Bentley
Vermont
Bentley
Gas Flows Between Stars In Eclipsing Binary U Cephei
Dr. Otto Struve reports two-way hydrogen gas exchange in the eclipsing binary U Cephei with a cool star transferring gas to the hot star and a separate stream from hot to cool. The hotter star’s radius is about half that of the cooler one, with less than the larger star’s radius separating their surfaces.
MENTIONED IN THIS ARTICLE
Otto Struve
Yerkes and McDonald Observatories
Chicago
Texas
Snow Crystal Imprints Preserve Fleeting Ice Patterns
A feature discussing the unique geometry of snowflakes and methods to capture permanent records of their patterns. It describes soot imprinting on glass or paper, shellac fixation, and plastic embedding using Formvar 1595, detailing procedures, advantages, and caveats for long term preservation of snow crystal images.
MENTIONED IN THIS ARTICLE
Maine
Montana
New Zealand
Antarctica
Hans Neuberger
Pennsylvania State College
Neuberger
Vincent J. Shaefer
Theeneral Electric Research Laboratory
Roses Stay Fresh Longer When Cut in Late Afternoon
Cornell floriculturist Joseph Howland reports experiments with 1000 roses showing cuts made around 4:30 p.m. stay up to 10 hours longer than morning cuts. Afternoon cuts reduce bacterial growth and boost leaf sugars, improving longevity. hay cutting also benefits from late day timing.
MENTIONED IN THIS ARTICLE
Science Service
Ithaca
N. Y
Joseph E. Howl
Cornell University Floriculturist
Howland
Cornell
University
Also Mentioned on This Page
Army Airforce
Hero
Air Dizfuser
Serni
iPolor
America
PBM Mariner
By Joseph H. Kraus
Science Clubs of America
Daily Weather Bureau
Frank Thone
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