New Machines And Gadgets Gadget Bulletin 315 prompts home tech
A survey lists electric clocks with bedside light and radio options plus a muting buzzer, a new spherical roller bearing with self aligning load sharing, magnetic current record links for lightning, a compact fax style home printing unit, an automatic razor holder with auto on off, a patented two spring shoe heel, a zero Fahrenheit home freezer with fast defrost, and a four in one garden hoe. For more information send a three cent stamp to Science Service in Washington for Gadget Bulletin 315.
MENTIONED IN THIS ARTICLE
Science Service
N St
N. W
Washington, D. C
Early hay fever warned as weeds bloom
The article notes an early hay fever season with ragweeds and grasses. It identifies narrow-leaved plantain as the prime offender and mentions oak pollen irritating some people. It urges homeowners to spray narrow-leaved plantain with 2,4-D now on the market.
Better Dry Cleaning Through Analysis of New Fabrics
Big-field piece explains evolving dry cleaning methods for postwar fabrics. It notes tests on shrinkage, colorfastness, and strength at Ohio State and Penn State labs, with industry training, solvent types, and spot removal techniques. The article also covers history, equipment, and home hints for stain care.
MENTIONED IN THIS ARTICLE
Sarah
Ohio State Association of Dyers and Cleaners
Ohio State University
Pennsylvania State College
Pennsylvania State Association of Dyers and Cleaners
National Association of Dyers and Cleaners
Silver Spring
Junior Scientists Build Steam Turbine From Can Spool
A hands on project shows how to make a reaction steam turbine in about an hour using a tin can spool medicine dropper and disk. Construct a rotor with a drilled tin disk twisted sectors and a nail shaft then seal with solder or cement. Then test by boiling water to spin the rotor and power simple mechanisms or observe color changes on rotating disks.
MENTIONED IN THIS ARTICLE
Wilight
Science Service
Ancient Rivers Caused Rise and Fall of Early Cities
Science Service reports that shifting Tigris and Euphrates rivers doomed ancient cities, cutting trade and agriculture as river courses moved. Archaeologists note riverbank sites, canal remnants, and pottery seals reveal past water routes and settlement patterns along Mesopotamia.
MENTIONED IN THIS ARTICLE
Tigris
Euphrates
Frog Bites Man in Belgian Congo Mystery Frog
A large frog in northeast Belgian Congo bit a native man, leaving two puncture marks like dog teeth. Mons. Caseleyr noted forked tongue and unusual dentition, suggesting an unknown species may lurk near Niangara. Arthur Loveridge sought details for the Museum of Comparative Zoology.
MENTIONED IN THIS ARTICLE
Belgian Congo
T. L. Putnam
United States
Arthur Loveridge
Museum of Comparative Zoology
Cambridge
Mass
Mons. C. Caseleyr
Niangara
Mons
Caseleyr
Tapilo
Mons. Caseleyr
Loveridge
American Society of Ichthyologists and Herpetologists
Dragonflies Dance In Twilight Groups
Dragonflies that spend the day solitary near water join in an evening aerial display. About fifty insects perform figure eights and S shapes within an invisible boundary before retreating to weeds as the sky darkens. Observed by Phil Ray of Kirkwood Missouri, the ritual lasts about a half hour to 45 minutes.
MENTIONED IN THIS ARTICLE
Phil Ray
Kirkwood
Rau
Journal of Comparative Psychology
Science Service
Also Mentioned on This Page
Radio Four
By Science Service
Carmer
Martha G. Morrow
Ima
National Association Institute of Dyeing and Cleaning
Fremont Davis
By Joseph H. Kraus
Science Clubs of America
Dorothy Mackay
British Quarterly Review of Archaeology
Mans
Mackay
Famil
Indus Valley
Mohenjo-Daro
Indus
SKF Industries, Inc
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