New Gadgets Highlight Surgical Glass to Plastic Gears
New items include sun glare reducing glass sandwich lenses and plastic gears replacing metal in lathes and washing machines. Mani cure light and egg inspection UV device, plastic dressmaking aids, adjustable whisk broom, easy weigh scale, wall bracket for directories. Send three cent stamp to Gadget Bulletin 526 for more details.
MENTIONED IN THIS ARTICLE
Science Service
N St
N. W
Washington, D. C
Backyard With 1402 Different Insects Gave Scientist Outstanding Collection
Amateur entomology makes summer science hobby. Dr. Frank E. Lutz collected 1,402 insect species in a 75 by 200 foot yard. Simple, affordable equipment and home-scale observation support beginner collectors, with insect killers avoiding broad collateral damage.
MENTIONED IN THIS ARTICLE
Frank E. Lutz
Science Service
Knockdown Screened Shelter You Can Build
Step by step guide to constructing a portable screened shelter using old or new screens. Frame options include 2-inch square stock or 2 by 3 inch components with corner posts. Hinged stringers, diagonal stays, and rope and stake supports enable quick erection and easy disassembly within half an hour.
MENTIONED IN THIS ARTICLE
Science Service
Corncrib of the World
The North Dakota Agricultural Experiment Station compares a U S corn crop to a cubical bin 1638 feet wide and high. If fields were adjacent the total area would cover 134 275 square miles, larger than Illinois Indiana and Ohio. A rail convoy of 1 934 246 boxcars could move it, stretching 16 480 miles at 50 mph, taking 13 days 18 hours.
MENTIONED IN THIS ARTICLE
U. S
Illinois
Indiana
Ohio
North Dakota Agricultural Experiment Station
New York
San Francisco
Des Moinés
Science Service
Distinguishing Toads From Frogs A Layman Guide
Nature Ramblings explains that toads are landbound with dry bumpy skin while frogs are aquatic with smooth skin, but exceptions complicate identification. It describes amphibians general traits and the tadpole metamorphosis from fishlike larvae to adults, noting predatory waters and the transition via lungs and shrinking tails.
Remarkable Surinam Toad Carries Eggs in Its Back
The Surinam toad of Brazil and the Guianas has a back pocked with hollow pockets where fertilized eggs are embedded. After intense male cooperation, the eggs hatch and the young emerge from the mother’s back, becoming independent units.
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Surinam
Brazil
Guianas
Science Service
Deadly sprays arm fight against poison ivy and relatives
Poison ivy poison oak and poison sumac blister half a million Americans each season. New chemicals ammonium sulfamate and 2,4-D join older agents in woodlands and yards, with caution about wind drift and skin contact.
MENTIONED IN THIS ARTICLE
du Pont
U. S. Department of Agri
Navy Studies Lake Mead Silt Deposits On Timeline
Navy scientists and researchers from multiple agencies studied silt in Lake Mead for two years. They estimate the lake could remain before filling with silt until 2225 or later, extended by upstream dams catching sediment. The report criticizes inflated siltation estimates and notes erosion control needs.
MENTIONED IN THIS ARTICLE
Navy
Lake Mead
Hoover Dam
Secretary of the
Interior
Oscar L. Chapman
Science Service
Translation effort to bring Russian math to American readers
A cooperative project by the American Mathematical Society and the Office of Naval Research translates 51 Russian mathematics articles. The effort follows 1947 language restrictions and aims to make recent Russian work accessible in English to U.S. mathematicians.
MENTIONED IN THIS ARTICLE
American Mathematical Society
Office of Naval Research
Ter
Science Service
Half Million-Volt Glow Tests Weather Effects On Power Line
An experimental 500000 volt line near Brilliant Ohio is tested to gauge how rain snow or sleet affects high voltage transmission. Corona glow around wires increases as moisture raises conductivity. Meters cameras radio receivers and a TV set monitor corona loss weather radio waves and humidity.
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Brilliant
Ohio
Science Service
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