New Gadgets And Inventions From Gadget Bulletin 370
This gadget bulletin highlights neoprene broom heads that resist wear, a plastic serving tray doubling as a dish drain board, a six color mechanical pencil with color dots for quick lead selection, a tube-free mystery radio using a bed spring as an aerial, a camera lens attachment for soft focus, fire resistant folding doors, a theater screen with tearless glass fibers for depth, and a two-rotor flow meter to measure water flow. Send a three cent stamp to Science Service for more information.
MENTIONED IN THIS ARTICLE
Science Service
N St
N. W
Washington, D. C
War on Foot-and-Mouth Disease in Mexico Aids U S effort
Mexico and the United States mount a joint offensive against foot-and-mouth disease in central Mexico. The operation uses barriers, disinfectants, vehicles, and 70 US veterinarians and engineers, with mass cullings and indemnities as chapters unfold. The fight costs millions and may reshape Mexican agriculture and border biosecurity.
MENTIONED IN THIS ARTICLE
Mexico
Mexico City
U. S
U. S. Congress
North American
District of Columbia
United States
Europe
Oscar Flores
Aftosa
U. S. Army
Best Takeoff Angle for Broad Jump Studied by Marble Model
Junior scientists model the running broad jump with a steel ball in a cardboard trough to test takeoff angles. By using wedges and varied angles up to 45 degrees, they seek the optimal angle for maximum distance, noting body position affects air time.
Touch-Me-Not Plants and Their Popping Pods
Touch-Me-Not describes tall juicy-stemmed marsh plants with thin leaves and two common species, one pale yellow and one orange yellow. The text notes a faint pattering sound in a thicket and explains the brown pods burst when disturbed, giving the plant its common and Latin name Impatiens.
Best Time to Cut Roses Warns Late Afternoon
U S Department of Agriculture scientists advise cutting roses in late afternoon for better storage. They say leaves and stems retain more carbohydrates after a sunny day, aiding preservation.
MENTIONED IN THIS ARTICLE
U. S. Department of Agriculture
DDT Kills Dandelions But Spoils Survivors Fasciation Revealed
At Beltsville Maryland the 2 4 D spray killed plantains and dandelions yet some dandelions survived and when attempting to bloom later they showed fasciation a siamesed stem with multiple flower heads and abnormal growth including a near normal stem with a secondary flower head and stem.
MENTIONED IN THIS ARTICLE
Ally
U. S. Plant Industry
Beltsville
Collecting Rocks and Minerals Makes Fascinating Hobby
A 1947 Science Service article explains rocks and minerals as keys to geology, noting how specimens reveal formation history and origin. It covers mineral labeling, specimen sizes, and basic rock types including igneous, sedimentary, and metamorphic. It describes granite, basalt, limestone, sandstone, slate, marble, and lava types like obsidian with plain, non-graphic language.
MENTIONED IN THIS ARTICLE
Midwest
Hudson
Sciene Service
Also Mentioned on This Page
México
America
Bureau of Animal Industry
By Joseph H. Kraus
Science Clubs of America
Wedge
By Science Service
Usu
T. Jones
By Science Service, Inc
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