New Gadgets Highlight Innovative Daily Use Devices
A roundup of new inventions includes a hollow handled toothbrush delivering toothpaste by internal pressure, a pocket hearing aid for low sound levels, compact microphone and components in a half pound pack, removable Venetian blind slats with rear clips, a clear plastic vent plug battery indicator, an automobile painting mitt with kit, an electric corn popper with agitator, and a cushioned rubber mat with thousands of resilient cells for fatigue relief.
Not Ladylike Beetles Turn Predator in Garden
The article notes ladybirds are better called leopard beetles due to their fierce carnivory. These beetles attack other insects and prey on pests like aphids and scale insects, helping farmers control troublesome plant pests.
MENTIONED IN THIS ARTICLE
Santiago Atitlan
United Fruit Company
Diamonds From Cheap Forms of Carbon Take Shape Anew
A science feature by leScience editor CHEMI discusses carbon’s forms and the quest to create diamonds under high pressure. It recalls Helensburgh physicist P. W. Bridgwood Glispow noting experiments with industrial presses, and mentions historical efforts by Henri Moissan and others to produce diamonds from iron and carbon under extreme conditions.
MENTIONED IN THIS ARTICLE
Tom
Hivander
Helensburgh
P. W. Bridgwip
Glispow
Ward University
University of Sydney
Arjen
Paris
Henri Mean
French Scientif Co
Te. Maossan
Funda
Diamond Quest: Can Pressure Create Real Diamonds?
The article explains attempts to make diamonds from carbon using extreme pressure and heat. It covers Sharat K Roy’s notes on earth depth data, various historic methods, and Dr. Bridgman’s experiments balancing graphite and diamond structures.
MENTIONED IN THIS ARTICLE
P. W. Bridgman
Harvard University
Pretoria
Transvaal
South Africa
General Electric
Carborundum
Norton
Bridgman
Dr. Bridgman
Science Service
How Saltpeter Burns Stumps Into Ground
Instructions from Joseph H. Kraus explain using saltpeter to treat stumps. Drill holes in the stump, fill with saturated potassium nitrate solution, cork and shield from rain, repeat for about a year, then ignite with charcoal to burn the wood to ground level. Includes demonstration with a newspaper test.
MENTIONED IN THIS ARTICLE
Science Service
Unseen Infra-red Structure Motivates Mole Research
The article explains how infra-red structure is used to study molecules. It notes wartime aims to pierce darkness and references the use of scopes and detectors to analyze vibration and rotation periods. The Office of Naval Research funds a program exploring infra-red regions and molecular emissions.
MENTIONED IN THIS ARTICLE
Office of Naval
Guatemalan Costumes Take a New Look for Tourists
Guatemalan native dress once famed for its bright textiles is evolving toward lighter, machine made garments similar to U S styles. Mrs Lilly de Jongh Osborne notes the old costumes fade as easier communication and higher living costs drive changes. Rayon replaces silk while wool and indigo dyes persist in cooler highland areas.
MENTIONED IN THIS ARTICLE
Guatemala City
Guatemala
United States
Lilly de Jongh Osborne
New World
Also Mentioned on This Page
Washington D. D C
By Helen Molly
CHEMI
Tremendous Pressu.e
Philadelphia
Nore
New York
National Bureau of Sta.dards
Washington, D
Frederick D. Russini
By Science Service
Sharat K Roy
Department of Geology
Chicago Natural History Museum
Kmryn
Irenes
Natal
Labora
Topan
Ralph Phen
Chinhja University
Fiat
Moisan
G. E
Dr. Mellor
MelJor
Hannay and
Moissan
By Joseph H. Kraus
Science Clubs of America
Peter
Potassium
Uiterul
This is just the beginning! Our collection holds over 300 years of history, including rare newspapers, obituaries, marriage records, birth records, and so much more—most of which you won’t find anywhere else!