Science Parade and Night Vision in the Ionosphere
A science roundup links the ionosphere’s E layer to radio signals and sun-made ultraviolet light. It notes aircraft mold casting methods, dry ice use, soap making, cancer prevention ideas, and vitamin influences on night vision, advising a balanced diet for sailors and readers.
MENTIONED IN THIS ARTICLE
Earth
Philippines
Dutch East Indies
Night vision and two kinds of sight explained
Better by Americans are developing a new sight skill the ability to see the enemy in the dark of night and keep from stabbing toes during blackouts. Two kinds of sight exist daylight vision via cone cells and night vision via rod cells. The Navy has formed a Night Vision Board to train officers in proper nighttime use.
MENTIONED IN THIS ARTICLE
U. S. Navy
Night Vision Board
Night Eyes and Darkness Avoidance for Air Raid Duty
The article explains how night vision works for pilots and wardens, warning against staring directly at faint stars or lights. It covers dark adaptation times, color sensitivity, the danger of flashes, and tips like patching one eye and using red goggles to protect night vision before going on duty.
MENTIONED IN THIS ARTICLE
Pleiades
Navy
New Patents Reveal Durable Nets and Quiet Electric Discharge
New devices include a chemical treatment for fish nets using chlorinated rubber and a bac tericide to boost life and flexibility. A trailing metallic wheel proposes quieter static discharge for trucks, while a versatile garden hoe with interchangeable blades aims for universal use. Non fogging gas mask windows and a facial expression device by a Hungarian inventor are also noted.
Wooden Fences and Trellises You Can Make Now
A 1942 guide explains building wooden fences and lattice trellises as affordable alternatives to iron and steel. It covers lattice design, cutting, assembling framework, archways, arch and trellis construction, and best practices for securing posts with ash and oil treatment to resist rot and termites.
MENTIONED IN THIS ARTICLE
Science Service
Science Service invites clubs to join
A brief notice invites readers to start a Science Club in shops, schools, or neighborhoods and to write to the newspaper’s Science Service for guidance at 1719 N Street Northwest, Washington, D C.
MENTIONED IN THIS ARTICLE
Science Service
N St
N. W
Washington, D. C
Red Light Best in Blackout Reduces Enemy Visibility
Science Service reports Navy Night Vision Board favors red lighting during blackouts. Red light preserves dark adaptation, minimizes afterimage and glare, and reduces reflections on instruments and windshields, while blue light would be far more visible to enemy observers.
MENTIONED IN THIS ARTICLE
Navy
Night Vision Board
17th Year Cicadas to Abound Across Ohio Valley
Seventeen year cicadas will be abundant this year across the Ohio valley with heavy counts in the Tennessee valley. Outliers may reach Cape Cod and northern Illinois. The 13-year cicada will be sparse along a Gulf coast strip. There are 17 broods of the 17-year species and 13 of the 13-year group east of the Great Plains.
MENTIONED IN THIS ARTICLE
Ohio Valley
Tennessee Valley
Cape Cod
Illinois
Gulf Coast
Great Plains
Also Mentioned on This Page
Watson Davis
Cornelius P. Rhoads
Memorial Hospital
New York
Marjorie van DE Water
Houdini
Science Service Photos
Gadget Bulletin
By Joseph H. Kraus
Science Clubs of ‘America
Rocks
By Science Service