Wings of Europe
American Air Supremacy Threatened, The Bogey of German Air Strength, War Aspects of Aeronautics, Research Must Carry on
Volume 152, Issue 5
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Features
World Wide Radio International Broadcasting
Why Long-Distance Transmission is Possible With Low Power, Day and Night Wavebands
Back to Prosperity with Housing
Housing Program Offers Tremendous and Varied Market to Construction Industry, Durable Goods Producers, All Labor, and Business Generally
Safety in the Air
More Improved Weather Service Needed, New Radio Aids Important, Weeding Out of Incompetent Pilots Held to be a Prime Necessity
Double Stars
The Realm Where the Visual Observer Still Reigns Supreme and Will not be Dethroned...
Electric Hotbeds
Controlled Heat, Higher Percentage Of Germination, Better Quality Plants
Exploring Prehistoric Georgia, May 1935
A Mound with a Spiral Ramp, Hastily Abandoned Burning House, Largest Archeological Expedition in America, Similar Sites Abound...
Streamlining in Nature
How Man May Learn From Nature, The Streamlined Salmon, Long Over-Seas Flights of Birds, Small Details of Vast Importance...
Candid Photography
Elusive Subjects Tax the Advanced Amateur Photographer's Ingenuity, Theater Pictures Possible, Miniature Cameras Solve Problems...
Electricity's Place in Railroading
Improve Schedules, Mite Power, Solves Problems of Heavy Traffic, Less Maintenance for Electric Locomotive, but Greater Fixed Charges...
Cutting Casting Costs
Die Casting of Many Metal Products, Least Expensive, Process Improved, Replaces Other Processes, Die Design Advanced, Future...
Thrills from a Home-Made Polarizer
An Unlimited Field for Experimentation and Fun, Gorgeous Display of Colors Difficult to Exaggerate, Cost, Less than Two Dollars...