New Gadgets From Science Service Gadget Bulletin 477
New devices include a 10 quart insulated picnic basket with glass fiber walls and a moth repelling coating, a folding sawhorse patent with pivoting legs, a coal dust explosion demo device using a 10 inch plastic tube, an oil drainer for cars, a portable air powered device, a two legged golf putter for better grip, plastic dish washing aprons and an electronic safety starter for fluorescent lamps. Readers may request Gadget Bulletin 477 by sending a three cent stamp to Science Service in Washington DC.
MENTIONED IN THIS ARTICLE
Science Service
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Washington, D. C
Nords in Science Turbojet Turboprop
Turbojet and turboprop engines power today’s fast planes. In a turbojet, compressed air enters chambers where fuel such as kerosene is added and burned, producing high pressure gases that drive the jet exhaust. In a turboprop, gases expand through turbine vanes to rotate a shaft that drives traditional propellers.
Cultures of Old and New Worlds Follow Shared Development
A Science Service feature traces a single development sequence across world civilizations from primitive hunter gatherers to empire building. Dr. Julian Steward places six cradles in arid regions on a common scale, noting early farming, class formation, warfare, and regional florescence followed by cycles of conquest and decay.
MENTIONED IN THIS ARTICLE
Julian H. Steward
Columbia University
Steward
Old World
New World
Mesopotamia
Egypt
China
Peru
Middle America
Chichen Itza
Yucatan
Chephren
Dog
Andes
Cal
Science Service
Millions of Glass Bubbles as Thermal Insulator
Scientists at Denver University Industrial Research Institute report foamed glass bubbles made from borax feldspar flint soda ash and fluorspar as a sterile water resistant and light insulating material. The aim is to aid the Armed Forces in transporting frozen foods and medicine and to surpass cork in insulation.
MENTIONED IN THIS ARTICLE
Science Service
Industrial Research Institute of Denver University
Shirley A. Johnson
Ralph Conrad
Institute
Johnson
Cicadas Mistaken as Locusts Bring Weather Folklore
A Nature Ramblings column by Frank Thone explains cicadas are not locusts and discusses their summer song and overheated frost forecasts. It notes the seventeen year cicada misbelief, the W-shaped wing venation superstition, and the yearround presence of cicada broods across the country.
MENTIONED IN THIS ARTICLE
Washington, D. C
Milk Alone Could Sustain Life From Birth To Death
Science Service reports experiments showing milk only diets may support life from birth to old age. In two year trials white rats fed milk plus minerals lived as long as those on cereals and meats, suggesting milk is nearly complete for all life stages though minerals may be needed. Dr. C M McCay notes minerals like manganese iron and copper supplement milk.
MENTIONED IN THIS ARTICLE
Science Service
C. M. McCay
New York Agricultural Experiment Station
Dr. McCay
Weigh Heavy Objects with Levers on Small Scales
Practical guide to using levers and wedges to extend the capacity of small scales. It explains setting up a beam with wedges or blocks, selecting a fulcrum ratio, balancing the item, subtracting the beam’s weight, and calculating the true load. It covers spring balances and suspension scales with step by step positioning tips.
New Hard Pad Disease Threatens Dogs in America
A new canine disease, hard pad disease, may spread from Great Britain to the United States. It presents with iron like hardening of toe pads and sometimes the nose, plus digestive upsets and fatal fits. A vaccine from British researchers could protect dogs, though it does not guard against distemper.
MENTIONED IN THIS ARTICLE
Great Britain
A. B. Macintyre
D. J. Trevan
R. F. Montgomerie
Burroughs, Wellcome and Company
England
Science Service
Fido
Dis Temper
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Frank Thone
Washington
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By Joseph H. Kraus
Science Service Home Science Editor
By Science Service
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