New Gadgets Highlight Eight Roller Rolling Pin and More
A roundup of new devices includes a eight-roller plastic rolling pin that smooths dough evenly, a boat spark plug with a built in 10 000 ohm resistor to reduce radio interference, synthetic color film for professional cinema, plastic handled pinking shears, a telescoping floor lamp, a safety door handle for cars, and a reversible wrist watch designed for workbench protection. Readers may request Gadget Bulletin 475 from Science Service by sending a three cent stamp.
MENTIONED IN THIS ARTICLE
Science Service
N St
N. W
Washington, D. C
Weight and Mass Distinctions in Physics
The article explains that weight is a force depending on gravity and location, while mass is a quantity of matter and constant regardless of position. It notes geopounds and slugs as mass units, and contrasts spring scales measuring weight with balance scales measuring mass.
MENTIONED IN THIS ARTICLE
Earth
North Pole
Equator
Radar transforms air and water travel with widespread postwar use
After wartime reveal, radar aids air traffic with anti collision and GCA systems. Large transports use light 15 pound transmitter receivers for warning of mountains or ground, while ground based ILS and radar track planes in fog. Berlin Airlift demonstrated radar control over a 100 mile radius guiding C 54s safely to landings.
MENTIONED IN THIS ARTICLE
New
Hama Faun
U. S
Howard Hughes
United States
GCA
Berlin
Airborne Instruments Laboratory
Tempelhof
Berlin Center
Mineola
N. Y
Mitchel Field
Long Island
Northrop
Black
United Kingdom
Canada
Alaska
North Pole
Science Service
Make a Key for Your Door Lock at Home
A 1949 Science Service article explains how to duplicate or fabricate keys for common locks. It covers identifying a matching blank, filing notches, testing with soot impressions, and careful handling of locks and springs while avoiding cylinder lubrication.
MENTIONED IN THIS ARTICLE
Science Service
Nature Ramblings on Goldenrod as National Flower Debate
The piece argues for the goldenrod as America's national flower and reviews the contrasting case for columbine Aquilegia while noting flowering times. It rejects myths about hay fever and explains goldenrod blooms after Independence Day while columbine finishes around July 4.
MENTIONED IN THIS ARTICLE
Goldenrod
Science Service
How Sweet Is a Kiss From Today's Young Miss
A newspaper note explains that modern lipsticks contain saccharin, a sweetness enhancer about 200 times sweeter than sugar. The tiny amount per lipstick, roughly one two-hundredth of a gram, adds sweetness while the average lipstick weighs 3.2 grams.
MENTIONED IN THIS ARTICLE
Grandpa
Science Service
Bees Use Tail Wagging to Share Food Location
An Austrian scientist reports that bees wag their tails and dance as the main method of communication among honeybees. The dances convey information about where to find nectar and other food sources.
Peruvian farmer aids U S garden pest control
The U S Department of Agriculture notes the international knowledge exchange urged by President Truman and highlights Federico Tong of Tingo Maria Peru harvesting Lonchocarpus roots to produce rotenone. Rotenone, a colorless crystalline insecticide, comes mainly from the Amazon headwaters in northern South America after wartime cuts in Far East supplies.
MENTIONED IN THIS ARTICLE
Truman
U. S. Department of Agriculture
Federico Tong
Tingo Maria
Peru
Derba
Far Eastern
Tropics
Far East
Amazon
South America
Also Mentioned on This Page
By Science Service
Radar
Army Air Force
U.S. Air Force
Great Lakes
Mississippi River
Baltimore
Norfolk
Chesapeake Bay
Liverpool
By Joseph H. Kraus
Science Service Home Science Editor
National Flowers
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