New Machines And Gadgets
The article lists gadgets and farm and home devices such as an electric convection heater resembling a radiator, a hay baler tractor unit, a durable football helmet, a high traction tractor tire, an automobile snowshoe traction aid, a midget rectifier for radio receivers, a Geiger Mueller survey probe with a portable cable, a double-receiver headset for rapid surveys, and a deaf-friendly radio attachment. It invites readers to request Bulletin 340 from Science Service for more information.
MENTIONED IN THIS ARTICLE
Geiger-Mueller
The Weak Survive By Science Service
The article discusses predator survival, noting wolves have been hunted to extinction in settled areas while coyotes persist as scavengers and thieves. It highlights the coyotes as nuisance to domestic animals yet useful for cleaning up carrion and controlling rodent populations.
Gravel culture speeds orchid bloom for hobbyists and pros
Missouri Botanical Garden trials show gravel culture yields orchid blooms faster, with Cattleya seedlings flowering in 3.5 years versus five-plus in peat. The method floods roots with nutrients, cutting labor and time for breeders and amateurs alike, while raising long term effects questions.
MENTIONED IN THIS ARTICLE
Missouri Botanical Garden
St. Louis
War and Sacrifice May Have Prevented Mass Starvation
A UC professor suggests dense Central Mexican populations prompted constant war and human sacrifice from 1430 to 1520 A.D. to balance deaths with resources. He estimates about 15,000 war captives, slaves, and children were sacrificed yearly, with a 20 percent higher death rate overall.
MENTIONED IN THIS ARTICLE
Central
Mexico
S. F. Cook
University of California
Prof. Cook
Cook
Human Biology
Science Service
Edison Magnetic Ore Separator Demonstrated by Juniors
Science Clubs of America presents Edison’s magnetic ore separation work through models and experiments. Students reproduce the device with a hopper magnet and partitioned box to separate iron from sand, mirroring Edison’s process and noting multiple magnets and wet operation as innovations.
MENTIONED IN THIS ARTICLE
Edison
Quogue
Long Island
Oe Edison
Science Service
New Tobacco Varieties Grow After Disease Ravaged Lands
Three disease resistant tobacco types allow cultivation on thousands of acres previously abandoned due to root rot black shank and Granville wilt. Research was led at the Oxford North Carolina Tobacco Experiment Station under the USDA and North Carolina Department of Agriculture and Experiment Station.
MENTIONED IN THIS ARTICLE
Oxford
N. C
U. S. Department of Agriculture
North Carolina Department of Agriculture and Experiment Station
Hen Egg Laboratory for Doctors Identifies Disease Organisms
San Francisco physicians Dr. Henry K. Silver and Dr. C. Henry Kempe describe a sterile hen egg culture method. A modified Goodpasture chick embryo technique enables rural doctors to grow meningitis agents and other pathogens quickly with minimal equipment.
MENTIONED IN THIS ARTICLE
Henry K. Silver
C. Henry Kempe
San Francisco
Journal of the
American Medical Association
Silver
Kempe
Science Service
Fur Replaces Grains In Freak Ear of Corn
A Tennessee Agricultural Experiment Station report describes a corn ear where hollow fur like fibers replace the grains. The reddish white hairs resemble tubes with thickened walls and few cross walls. Genetic or environmental causes are unknown and the find, first noticed by Clarence Lee in Ohio, is compared to other pod corn variants.
MENTIONED IN THIS ARTICLE
Frederick D. Richey
Tennessee Agricultural Experiment Station
Journal of Heredity
Clarence Lee
Chillicothe
Ohio
Mr. Richey
George C. Foster
Science Service
Also Mentioned on This Page
N St
N. W. Nashington
D. C
Uery
By Science Service
U. S. Botanic Garden
Fremont Davis
Joseph H. Kraus
Science Clubs of America
Thomas A. Edison
Ory
Ensivo
Garp
Petrolatum
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!