Copper's vital role in the blood and health
Wisconsin and Kentucky researchers report copper helps form hemoglobin and aids anemia recovery in rats and calves. Experiments show copper intake improves appetite and vigor, with copper present in human and cow milk and most foods, water, and organisms.
MENTIONED IN THIS ARTICLE
Wisconsin
Kentucky
Columbia University Medical School
Paul de Kruif
Science Fights Sneeze Weeds With Targeted Pollen Therapy
An article describes a preventive treatment for hay fever using injections of fluid pollen extracts matched to the patient’s specific allergen. It outlines a patch test on the forearm to identify the culprit, with ragweed noted as a common irritant, and details a government method for collecting pure pollen for medicinal use.
MENTIONED IN THIS ARTICLE
United States
Plant Bureau
Artificial nests coax black bass to breed across the United States
The black bass is a nest builder. Males prepare a patch by a circular bottom cavity and guard the nest while eggs are laid. Researchers use artificial nests of iron rings filled with pebbles and sand, with a semicircular screen to deter rivals. Aquarium-scale ponds two feet deep host minnows and liver feed, aquatic plants conceal and nurture fry, enabling widespread hatchery of bass.
MENTIONED IN THIS ARTICLE
T Mary
United State Howe
United States
Logravure Etching Technique On Douglas Fir Panels
A new Logravure process lets artisans etch pictures on Douglas fir panels using fine sand grains. Stencils protect areas while a sand stream erodes soft grain, creating a raised relief design with contrasting background.
MENTIONED IN THIS ARTICLE
Popular Science Monthly
Wood panel artistry through grain etching and cedar relief
Description explains methods to create panels on Douglas fir and cedar. Stains and wax add perspective while natural grain is etched to emphasize grain figures. Cedar pieces form crests and insignia with high relief against straight grain, producing a driftwood like, worn look.
Amphibian aircraft tops navy research with twin-wing design
A new Sikorsky amphibian airplane is adopted by the U S Navy. It lands on land or water using hollow pontoon floats to prevent tipping. It features side by side pilot and mechanic seats, a rear cabin for eight, and 100 mph cruising with a 450 mile range.
MENTIONED IN THIS ARTICLE
United States Navy
Stopping a Train With a Mirror
A German scientist Dr Baeseler of the Bavarian railroads has devised a brake system using a multi facet mirror four inches across on the semaphore. It reflects locomotive light to a selenium cell triggering a relay and brake actuation with no false triggers in 4000 trials.
MENTIONED IN THIS ARTICLE
Baeseler
Diet and Divorce Cheerful Outlook Tied to Lime Intake
Dr George Walker, a noted dietitian, told a Baltimore housewives group that lime deficiency in the human system makes women nervous and men cruel, harming family happiness. He urged drinking milk as the simplest way to obtain lime, recommending a quart of milk daily and two oranges to improve temper.