Features
Diesels in the Air
Prove Their Value, For Military and Commercial Operations, In Active Use, Nearest Approach to Smooth Turbine Like Power Flow
Slicing and Polishing Meteorites
Boards from Fiber
Composition Boards Originated as Wall Coverings, Now Find Wide Use, Field of Use Constantly Widens, Manufacture, Research for Future
Planting for Economy
Wider Spacing of Trees, Lower Costs, Weeds, Bushes Enrich Soil, Cause Branches to Rot and Drop Off, Pruning Unnecessary, Quality Lumher
How Hot is the Sun?
It Has No Single Temperature hut the Layer that Sends Us its Light Directly Averages About 5740 Degrees, Absolute, or 9873 Degrees, Fahrenheit
A Bridge of Peace
United States to Canada, Four Different Types of Spans, The Biggest Little Bridge, Triple-Fundion Pier, New Cable Anchorages Used
The Enigma of the Submarine Canyons
What Radical Happening Produced Vast Submarine Canyons Comparable with the Grand Canyon? In Lively Fashion the Geologists Debate this Mystery
Vegetarian China
For Centuries China Has Unconsciously Been Working Out a Vast Food Experiment From Which the Western World Can Learn Practical Lessons
Turning 'Em Around
Cargo Ships Unloaded, Reloaded Speedily, Efficiently, Method is Exacting Stevedores Supervise, Arrange Cargo, Difficult Details
Departments
50 Years Ago, September 1938
- From the Editor
Our Point of View, September 1938
- Recommended
Books Selected by the Editors, September 1939
- Departments
Personalities in Industry, September 1938
Making Money out of Roads, Pipe-Line Tracer, and more
Camera Angles, September 1938
Camera Angles Round Table, September 1939
Telescoptics, September 1939
Current Bulletin Briefs, September 1939
Legal High-Lights, September 1938