New Gadgets Highlight Ventilated Shoe and More Innovations
A roundup of new devices includes a ventilated shoe with a heel lift that draws air under the heel, a seven by fourteen inch air tank for home use, a nightlight lamp rated under three cents monthly to run, an automatic French drip coffee maker without glass parts, a transparent rain poncho with back zipper, a seven gallon wheeled sprayer for lawns, a soap holding shower brush, and an offer to send Gadget Bulletin 421 by mail for more information.
Early American emblems and the rattlesnake motto
A fragmentary historical note describes the rattlesnake as an American emblem before the eagle, noting a yellow field with a coiled snake and the motto Dont tread on me. It recalls a pre revolutionary political cartoon showing colonies as a divided snake with Unite or die.
MENTIONED IN THIS ARTICLE
Seaboard
Lightweight concrete breakthroughs expand taller cheaper buildings
Lightweight aggregates and air entrainment cut building weight and cost. Expanded perlite vermiculite pumice and slag foams enable stronger insulation and easier molding while reducing dead load. The National Bureau of Standards and Housing Agency sponsor ongoing tests for safer, higher structures.
MENTIONED IN THIS ARTICLE
Pantheon
Rome
Pacific Coast
East
Middle West
National Bureau of Standards
Bureau of Reclamation
Housing and Home Finance Agency
Science Service
Prudential Life Insurance
Los Angeles
Home Made DDT Dusting Device Promotes Pest Control
A science club guide promotes a national drive to spread DDT dust to kill disease spreading flies and pests. Instructions detail crafting a duster from a tin can and balloon, with cautions about harming bees and beneficial insects and advice on safe use to protect crops and plants.
MENTIONED IN THIS ARTICLE
Science Service
Overgrazing Destroys Grass Roots Says Nebraska Study
University of Nebraska botanists J E Weaver and R W Darland report that overgrazing weakens grass tops and damages roots. They test renewal by transplanting sod blocks, cropping tops, and measuring six weeks later. Findings show shorter, lighter new roots and narrower leaves in overgrazed pastures. Remedies include rest or herd reductions.
MENTIONED IN THIS ARTICLE
University of Nebraska
J. E. Weaver
R. W. Darland
Science Service
German Planck Society Forms to Advance Science
German scientists create the Max Planck Society for the Advancement of Science to replace the Kaiser Wilhelm Society. The group aims to operate across Bitonia with freedom of research under Allied Control rules, attracting about 25 former Kaiser Wilhelm members. Planck, Nobel laureate in 1918, is the namesake.
MENTIONED IN THIS ARTICLE
Max Planck Society For the Advancement of Science
Kaiser Wilhelm Society
Goettingen
Max Planck
Max Planck Society
Bitonia
Control Council
Allied Control Authority
Also Mentioned on This Page
N. W
Washington, D. C
By Science Service
Martha G. Morrow
Science ‘Service
By Joseph H. Kraus
Science Clubs of America
Planck
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!